// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Generated by the Codegen C++ plugin.
// If you make any local changes, they will be lost.
// source: google/cloud/networkservices/v1/network_services.proto

#ifndef GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_NETWORKSERVICES_V1_NETWORK_SERVICES_CLIENT_H
#define GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_NETWORKSERVICES_V1_NETWORK_SERVICES_CLIENT_H

#include "google/cloud/networkservices/v1/network_services_connection.h"
#include "google/cloud/future.h"
#include "google/cloud/no_await_tag.h"
#include "google/cloud/options.h"
#include "google/cloud/polling_policy.h"
#include "google/cloud/status_or.h"
#include "google/cloud/version.h"
#include <google/longrunning/operations.grpc.pb.h>
#include <map>
#include <memory>
#include <string>

namespace google {
namespace cloud {
namespace networkservices_v1 {
GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_BEGIN

///
/// Service describing handlers for resources.
///
/// @par Equality
///
/// Instances of this class created via copy-construction or copy-assignment
/// always compare equal. Instances created with equal
/// `std::shared_ptr<*Connection>` objects compare equal. Objects that compare
/// equal share the same underlying resources.
///
/// @par Performance
///
/// Creating a new instance of this class is a relatively expensive operation,
/// new objects establish new connections to the service. In contrast,
/// copy-construction, move-construction, and the corresponding assignment
/// operations are relatively efficient as the copies share all underlying
/// resources.
///
/// @par Thread Safety
///
/// Concurrent access to different instances of this class, even if they compare
/// equal, is guaranteed to work. Two or more threads operating on the same
/// instance of this class is not guaranteed to work. Since copy-construction
/// and move-construction is a relatively efficient operation, consider using
/// such a copy when using this class from multiple threads.
///
class NetworkServicesClient {
 public:
  explicit NetworkServicesClient(
      std::shared_ptr<NetworkServicesConnection> connection, Options opts = {});
  ~NetworkServicesClient();

  ///@{
  /// @name Copy and move support
  NetworkServicesClient(NetworkServicesClient const&) = default;
  NetworkServicesClient& operator=(NetworkServicesClient const&) = default;
  NetworkServicesClient(NetworkServicesClient&&) = default;
  NetworkServicesClient& operator=(NetworkServicesClient&&) = default;
  ///@}

  ///@{
  /// @name Equality
  friend bool operator==(NetworkServicesClient const& a,
                         NetworkServicesClient const& b) {
    return a.connection_ == b.connection_;
  }
  friend bool operator!=(NetworkServicesClient const& a,
                         NetworkServicesClient const& b) {
    return !(a == b);
  }
  ///@}

  // clang-format off
  ///
  /// Lists EndpointPolicies in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the EndpointPolicies should
  ///  be listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.EndpointPolicy], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.ListEndpointPoliciesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L139}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::EndpointPolicy>
  ListEndpointPolicies(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists EndpointPolicies in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListEndpointPoliciesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.EndpointPolicy], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.ListEndpointPoliciesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L139}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::EndpointPolicy>
  ListEndpointPolicies(
      google::cloud::networkservices::v1::ListEndpointPoliciesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single EndpointPolicy.
  ///
  /// @param name  Required. A name of the EndpointPolicy to get. Must be in the format
  ///  `projects/*/locations/global/endpointPolicies/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.EndpointPolicy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.GetEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L182}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::EndpointPolicy>
  GetEndpointPolicy(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single EndpointPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetEndpointPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.EndpointPolicy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.GetEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L182}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::EndpointPolicy>
  GetEndpointPolicy(
      google::cloud::networkservices::v1::GetEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new EndpointPolicy in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the EndpointPolicy. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param endpoint_policy  Required. EndpointPolicy resource to be created.
  /// @param endpoint_policy_id  Required. Short name of the EndpointPolicy resource to be created.
  ///  E.g. "CustomECS".
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.EndpointPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L194}
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  CreateEndpointPolicy(
      std::string const& parent,
      google::cloud::networkservices::v1::EndpointPolicy const& endpoint_policy,
      std::string const& endpoint_policy_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateEndpointPolicy(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::EndpointPolicy const& endpoint_policy,
      std::string const& endpoint_policy_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new EndpointPolicy in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateEndpointPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.EndpointPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L194}
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  CreateEndpointPolicy(
      google::cloud::networkservices::v1::CreateEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateEndpointPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateEndpointPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  CreateEndpointPolicy(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single EndpointPolicy.
  ///
  /// @param endpoint_policy  Required. Updated EndpointPolicy resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  EndpointPolicy resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.EndpointPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.UpdateEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L213}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  UpdateEndpointPolicy(
      google::cloud::networkservices::v1::EndpointPolicy const& endpoint_policy,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateEndpointPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::EndpointPolicy const& endpoint_policy,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single EndpointPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateEndpointPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.EndpointPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.EndpointPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L49}
  /// [google.cloud.networkservices.v1.UpdateEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L213}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  UpdateEndpointPolicy(
      google::cloud::networkservices::v1::UpdateEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateEndpointPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateEndpointPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::EndpointPolicy>>
  UpdateEndpointPolicy(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Deletes a single EndpointPolicy.
  ///
  /// @param name  Required. A name of the EndpointPolicy to delete. Must be in the format
  ///  `projects/*/locations/global/endpointPolicies/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L227}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteEndpointPolicy(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteEndpointPolicy(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single EndpointPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteEndpointPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteEndpointPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/endpoint_policy.proto#L227}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteEndpointPolicy(
      google::cloud::networkservices::v1::DeleteEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteEndpointPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteEndpointPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteEndpointPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteEndpointPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteEndpointPolicy(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Lists `WasmPluginVersion` resources in a given project and
  /// location.
  ///
  /// @param parent  Required. The `WasmPlugin` resource whose `WasmPluginVersion`s
  ///  are listed, specified in the following format:
  ///  `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.WasmPluginVersion], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListWasmPluginVersionsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L409}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::WasmPluginVersion>
  ListWasmPluginVersions(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists `WasmPluginVersion` resources in a given project and
  /// location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListWasmPluginVersionsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.WasmPluginVersion], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListWasmPluginVersionsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L409}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::WasmPluginVersion>
  ListWasmPluginVersions(
      google::cloud::networkservices::v1::ListWasmPluginVersionsRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of the specified `WasmPluginVersion` resource.
  ///
  /// @param name  Required. A name of the `WasmPluginVersion` resource to get. Must be in
  ///  the format
  ///  `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}/versions/{wasm_plugin_version}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.WasmPluginVersion])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L451}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::WasmPluginVersion>
  GetWasmPluginVersion(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of the specified `WasmPluginVersion` resource.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetWasmPluginVersionRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.WasmPluginVersion])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L451}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::WasmPluginVersion>
  GetWasmPluginVersion(
      google::cloud::networkservices::v1::GetWasmPluginVersionRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new `WasmPluginVersion` resource in a given project
  /// and location.
  ///
  /// @param parent  Required. The parent resource of the `WasmPluginVersion` resource. Must be
  ///  in the format
  ///  `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}`.
  /// @param wasm_plugin_version  Required. `WasmPluginVersion` resource to be created.
  /// @param wasm_plugin_version_id  Required. User-provided ID of the `WasmPluginVersion` resource to be
  ///  created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPluginVersion] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L464}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPluginVersion>>
  CreateWasmPluginVersion(
      std::string const& parent,
      google::cloud::networkservices::v1::WasmPluginVersion const&
          wasm_plugin_version,
      std::string const& wasm_plugin_version_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPluginVersion
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateWasmPluginVersion(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::WasmPluginVersion const&
          wasm_plugin_version,
      std::string const& wasm_plugin_version_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new `WasmPluginVersion` resource in a given project
  /// and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateWasmPluginVersionRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPluginVersion] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L464}
  /// [google.cloud.networkservices.v1.WasmPluginVersion]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L238}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPluginVersion>>
  CreateWasmPluginVersion(
      google::cloud::networkservices::v1::CreateWasmPluginVersionRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPluginVersion
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateWasmPluginVersion(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateWasmPluginVersionRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPluginVersion
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPluginVersion>>
  CreateWasmPluginVersion(google::longrunning::Operation const& operation,
                          Options opts = {});

  // clang-format off
  ///
  /// Deletes the specified `WasmPluginVersion` resource.
  ///
  /// @param name  Required. A name of the `WasmPluginVersion` resource to delete. Must be in
  ///  the format
  ///  `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}/versions/{wasm_plugin_version}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L485}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPluginVersion(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPluginVersion
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteWasmPluginVersion(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes the specified `WasmPluginVersion` resource.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteWasmPluginVersionRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteWasmPluginVersionRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L485}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPluginVersion(
      google::cloud::networkservices::v1::DeleteWasmPluginVersionRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPluginVersion
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteWasmPluginVersion(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteWasmPluginVersionRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPluginVersion
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPluginVersion(google::longrunning::Operation const& operation,
                          Options opts = {});

  // clang-format off
  ///
  /// Lists `WasmPlugin` resources in a given project and
  /// location.
  ///
  /// @param parent  Required. The project and location from which the `WasmPlugin` resources
  ///  are listed, specified in the following format:
  ///  `projects/{project}/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.WasmPlugin], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListWasmPluginsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L303}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::WasmPlugin> ListWasmPlugins(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists `WasmPlugin` resources in a given project and
  /// location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListWasmPluginsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.WasmPlugin], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListWasmPluginsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L303}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::WasmPlugin> ListWasmPlugins(
      google::cloud::networkservices::v1::ListWasmPluginsRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of the specified `WasmPlugin` resource.
  ///
  /// @param name  Required. A name of the `WasmPlugin` resource to get. Must be in the
  ///  format `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.WasmPlugin])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L344}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::WasmPlugin> GetWasmPlugin(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of the specified `WasmPlugin` resource.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetWasmPluginRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.WasmPlugin])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L344}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::WasmPlugin> GetWasmPlugin(
      google::cloud::networkservices::v1::GetWasmPluginRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new `WasmPlugin` resource in a given project
  /// and location.
  ///
  /// @param parent  Required. The parent resource of the `WasmPlugin` resource. Must be in the
  ///  format `projects/{project}/locations/global`.
  /// @param wasm_plugin  Required. `WasmPlugin` resource to be created.
  /// @param wasm_plugin_id  Required. User-provided ID of the `WasmPlugin` resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPlugin] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L360}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  CreateWasmPlugin(
      std::string const& parent,
      google::cloud::networkservices::v1::WasmPlugin const& wasm_plugin,
      std::string const& wasm_plugin_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateWasmPlugin(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::WasmPlugin const& wasm_plugin,
      std::string const& wasm_plugin_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new `WasmPlugin` resource in a given project
  /// and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateWasmPluginRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPlugin] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L360}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  CreateWasmPlugin(
      google::cloud::networkservices::v1::CreateWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateWasmPlugin(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateWasmPlugin
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  CreateWasmPlugin(google::longrunning::Operation const& operation,
                   Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of the specified `WasmPlugin` resource.
  ///
  /// @param wasm_plugin  Required. Updated `WasmPlugin` resource.
  /// @param update_mask  Optional. Used to specify the fields to be overwritten in the
  ///  `WasmPlugin` resource by the update.
  ///  The fields specified in the `update_mask` field are relative to the
  ///  resource, not the full request.
  ///  An omitted `update_mask` field is treated as an implied `update_mask`
  ///  field equivalent to all fields that are populated (that have a non-empty
  ///  value).
  ///  The `update_mask` field supports a special value `*`, which means that
  ///  each field in the given `WasmPlugin` resource (including the empty ones)
  ///  replaces the current value.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPlugin] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.UpdateWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L378}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  UpdateWasmPlugin(
      google::cloud::networkservices::v1::WasmPlugin const& wasm_plugin,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateWasmPlugin(
      NoAwaitTag,
      google::cloud::networkservices::v1::WasmPlugin const& wasm_plugin,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of the specified `WasmPlugin` resource.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateWasmPluginRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.WasmPlugin] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.UpdateWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L378}
  /// [google.cloud.networkservices.v1.WasmPlugin]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  UpdateWasmPlugin(
      google::cloud::networkservices::v1::UpdateWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateWasmPlugin(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateWasmPlugin
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::WasmPlugin>>
  UpdateWasmPlugin(google::longrunning::Operation const& operation,
                   Options opts = {});

  // clang-format off
  ///
  /// Deletes the specified `WasmPlugin` resource.
  ///
  /// @param name  Required. A name of the `WasmPlugin` resource to delete. Must be in the
  ///  format `projects/{project}/locations/global/wasmPlugins/{wasm_plugin}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L397}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPlugin(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteWasmPlugin(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes the specified `WasmPlugin` resource.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteWasmPluginRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteWasmPluginRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/extensibility.proto#L397}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPlugin(
      google::cloud::networkservices::v1::DeleteWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPlugin
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteWasmPlugin(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteWasmPluginRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteWasmPlugin
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteWasmPlugin(google::longrunning::Operation const& operation,
                   Options opts = {});

  // clang-format off
  ///
  /// Lists Gateways in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the Gateways should be
  ///  listed, specified in the format `projects/*/locations/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.Gateway], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.ListGatewaysRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L241}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::Gateway> ListGateways(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists Gateways in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListGatewaysRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.Gateway], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.ListGatewaysRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L241}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::Gateway> ListGateways(
      google::cloud::networkservices::v1::ListGatewaysRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single Gateway.
  ///
  /// @param name  Required. A name of the Gateway to get. Must be in the format
  ///  `projects/*/locations/*/gateways/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.Gateway])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.GetGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L275}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::Gateway> GetGateway(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single Gateway.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetGatewayRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.Gateway])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.GetGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L275}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::Gateway> GetGateway(
      google::cloud::networkservices::v1::GetGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new Gateway in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the Gateway. Must be in the
  ///  format `projects/*/locations/*`.
  /// @param gateway  Required. Gateway resource to be created.
  /// @param gateway_id  Required. Short name of the Gateway resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Gateway] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L287}
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> CreateGateway(
      std::string const& parent,
      google::cloud::networkservices::v1::Gateway const& gateway,
      std::string const& gateway_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateGateway(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::Gateway const& gateway,
      std::string const& gateway_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new Gateway in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateGatewayRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Gateway] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L287}
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> CreateGateway(
      google::cloud::networkservices::v1::CreateGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateGateway(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGateway
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> CreateGateway(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single Gateway.
  ///
  /// @param gateway  Required. Updated Gateway resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  Gateway resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Gateway] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.UpdateGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L305}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> UpdateGateway(
      google::cloud::networkservices::v1::Gateway const& gateway,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateGateway(
      NoAwaitTag, google::cloud::networkservices::v1::Gateway const& gateway,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single Gateway.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateGatewayRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Gateway] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Gateway]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L60}
  /// [google.cloud.networkservices.v1.UpdateGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L305}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> UpdateGateway(
      google::cloud::networkservices::v1::UpdateGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateGateway(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGateway
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Gateway>> UpdateGateway(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single Gateway.
  ///
  /// @param name  Required. A name of the Gateway to delete. Must be in the format
  ///  `projects/*/locations/*/gateways/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L319}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGateway(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteGateway(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single Gateway.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteGatewayRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteGatewayRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/gateway.proto#L319}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGateway(
      google::cloud::networkservices::v1::DeleteGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGateway
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteGateway(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteGatewayRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGateway
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGateway(google::longrunning::Operation const& operation,
                Options opts = {});

  // clang-format off
  ///
  /// Lists GrpcRoutes in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the GrpcRoutes should be
  ///  listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.GrpcRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  /// [google.cloud.networkservices.v1.ListGrpcRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L380}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::GrpcRoute> ListGrpcRoutes(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists GrpcRoutes in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListGrpcRoutesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.GrpcRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  /// [google.cloud.networkservices.v1.ListGrpcRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L380}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::GrpcRoute> ListGrpcRoutes(
      google::cloud::networkservices::v1::ListGrpcRoutesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single GrpcRoute.
  ///
  /// @param name  Required. A name of the GrpcRoute to get. Must be in the format
  ///  `projects/*/locations/global/grpcRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.GrpcRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L422}
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::GrpcRoute> GetGrpcRoute(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single GrpcRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetGrpcRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.GrpcRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L422}
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::GrpcRoute> GetGrpcRoute(
      google::cloud::networkservices::v1::GetGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new GrpcRoute in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the GrpcRoute. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param grpc_route  Required. GrpcRoute resource to be created.
  /// @param grpc_route_id  Required. Short name of the GrpcRoute resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.GrpcRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L434}
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  CreateGrpcRoute(
      std::string const& parent,
      google::cloud::networkservices::v1::GrpcRoute const& grpc_route,
      std::string const& grpc_route_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateGrpcRoute(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::GrpcRoute const& grpc_route,
      std::string const& grpc_route_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new GrpcRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateGrpcRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.GrpcRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L434}
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  CreateGrpcRoute(
      google::cloud::networkservices::v1::CreateGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateGrpcRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateGrpcRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  CreateGrpcRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single GrpcRoute.
  ///
  /// @param grpc_route  Required. Updated GrpcRoute resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  GrpcRoute resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.GrpcRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  /// [google.cloud.networkservices.v1.UpdateGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L452}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  UpdateGrpcRoute(
      google::cloud::networkservices::v1::GrpcRoute const& grpc_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateGrpcRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::GrpcRoute const& grpc_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single GrpcRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateGrpcRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.GrpcRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GrpcRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L42}
  /// [google.cloud.networkservices.v1.UpdateGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L452}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  UpdateGrpcRoute(
      google::cloud::networkservices::v1::UpdateGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateGrpcRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateGrpcRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::GrpcRoute>>
  UpdateGrpcRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Deletes a single GrpcRoute.
  ///
  /// @param name  Required. A name of the GrpcRoute to delete. Must be in the format
  ///  `projects/*/locations/global/grpcRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L466}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGrpcRoute(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteGrpcRoute(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single GrpcRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteGrpcRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteGrpcRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/grpc_route.proto#L466}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGrpcRoute(
      google::cloud::networkservices::v1::DeleteGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGrpcRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteGrpcRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteGrpcRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteGrpcRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteGrpcRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Lists HttpRoute in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the HttpRoutes should be
  ///  listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.HttpRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  /// [google.cloud.networkservices.v1.ListHttpRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L614}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::HttpRoute> ListHttpRoutes(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists HttpRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListHttpRoutesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.HttpRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  /// [google.cloud.networkservices.v1.ListHttpRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L614}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::HttpRoute> ListHttpRoutes(
      google::cloud::networkservices::v1::ListHttpRoutesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single HttpRoute.
  ///
  /// @param name  Required. A name of the HttpRoute to get. Must be in the format
  ///  `projects/*/locations/global/httpRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.HttpRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L656}
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::HttpRoute> GetHttpRoute(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single HttpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetHttpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.HttpRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L656}
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::HttpRoute> GetHttpRoute(
      google::cloud::networkservices::v1::GetHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new HttpRoute in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the HttpRoute. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param http_route  Required. HttpRoute resource to be created.
  /// @param http_route_id  Required. Short name of the HttpRoute resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.HttpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L668}
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  CreateHttpRoute(
      std::string const& parent,
      google::cloud::networkservices::v1::HttpRoute const& http_route,
      std::string const& http_route_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateHttpRoute(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::HttpRoute const& http_route,
      std::string const& http_route_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new HttpRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateHttpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.HttpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L668}
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  CreateHttpRoute(
      google::cloud::networkservices::v1::CreateHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateHttpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateHttpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  CreateHttpRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single HttpRoute.
  ///
  /// @param http_route  Required. Updated HttpRoute resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  HttpRoute resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.HttpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L686}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  UpdateHttpRoute(
      google::cloud::networkservices::v1::HttpRoute const& http_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateHttpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::HttpRoute const& http_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single HttpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateHttpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.HttpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.HttpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L686}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  UpdateHttpRoute(
      google::cloud::networkservices::v1::UpdateHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateHttpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateHttpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::HttpRoute>>
  UpdateHttpRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Deletes a single HttpRoute.
  ///
  /// @param name  Required. A name of the HttpRoute to delete. Must be in the format
  ///  `projects/*/locations/global/httpRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L700}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteHttpRoute(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteHttpRoute(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single HttpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteHttpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteHttpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/http_route.proto#L700}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteHttpRoute(
      google::cloud::networkservices::v1::DeleteHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteHttpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteHttpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteHttpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteHttpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteHttpRoute(google::longrunning::Operation const& operation,
                  Options opts = {});

  // clang-format off
  ///
  /// Lists TcpRoute in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the TcpRoutes should be
  ///  listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.TcpRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListTcpRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L176}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::TcpRoute> ListTcpRoutes(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists TcpRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListTcpRoutesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.TcpRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListTcpRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L176}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::TcpRoute> ListTcpRoutes(
      google::cloud::networkservices::v1::ListTcpRoutesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single TcpRoute.
  ///
  /// @param name  Required. A name of the TcpRoute to get. Must be in the format
  ///  `projects/*/locations/global/tcpRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.TcpRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L218}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::TcpRoute> GetTcpRoute(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single TcpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetTcpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.TcpRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L218}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::TcpRoute> GetTcpRoute(
      google::cloud::networkservices::v1::GetTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new TcpRoute in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the TcpRoute. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param tcp_route  Required. TcpRoute resource to be created.
  /// @param tcp_route_id  Required. Short name of the TcpRoute resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TcpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L230}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> CreateTcpRoute(
      std::string const& parent,
      google::cloud::networkservices::v1::TcpRoute const& tcp_route,
      std::string const& tcp_route_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateTcpRoute(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::TcpRoute const& tcp_route,
      std::string const& tcp_route_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new TcpRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateTcpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TcpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L230}
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> CreateTcpRoute(
      google::cloud::networkservices::v1::CreateTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateTcpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTcpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> CreateTcpRoute(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single TcpRoute.
  ///
  /// @param tcp_route  Required. Updated TcpRoute resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  TcpRoute resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TcpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L248}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> UpdateTcpRoute(
      google::cloud::networkservices::v1::TcpRoute const& tcp_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateTcpRoute(
      NoAwaitTag, google::cloud::networkservices::v1::TcpRoute const& tcp_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single TcpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateTcpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TcpRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.TcpRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L248}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> UpdateTcpRoute(
      google::cloud::networkservices::v1::UpdateTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateTcpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTcpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TcpRoute>> UpdateTcpRoute(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single TcpRoute.
  ///
  /// @param name  Required. A name of the TcpRoute to delete. Must be in the format
  ///  `projects/*/locations/global/tcpRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L262}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTcpRoute(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteTcpRoute(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single TcpRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteTcpRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteTcpRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tcp_route.proto#L262}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTcpRoute(
      google::cloud::networkservices::v1::DeleteTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTcpRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteTcpRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteTcpRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTcpRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTcpRoute(google::longrunning::Operation const& operation,
                 Options opts = {});

  // clang-format off
  ///
  /// Lists TlsRoute in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the TlsRoutes should be
  ///  listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.TlsRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListTlsRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L161}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::TlsRoute> ListTlsRoutes(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists TlsRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListTlsRoutesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.TlsRoute], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListTlsRoutesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L161}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::TlsRoute> ListTlsRoutes(
      google::cloud::networkservices::v1::ListTlsRoutesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single TlsRoute.
  ///
  /// @param name  Required. A name of the TlsRoute to get. Must be in the format
  ///  `projects/*/locations/global/tlsRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.TlsRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L203}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::TlsRoute> GetTlsRoute(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single TlsRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetTlsRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.TlsRoute])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L203}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::TlsRoute> GetTlsRoute(
      google::cloud::networkservices::v1::GetTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new TlsRoute in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the TlsRoute. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param tls_route  Required. TlsRoute resource to be created.
  /// @param tls_route_id  Required. Short name of the TlsRoute resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TlsRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L215}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> CreateTlsRoute(
      std::string const& parent,
      google::cloud::networkservices::v1::TlsRoute const& tls_route,
      std::string const& tls_route_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateTlsRoute(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::TlsRoute const& tls_route,
      std::string const& tls_route_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new TlsRoute in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateTlsRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TlsRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L215}
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> CreateTlsRoute(
      google::cloud::networkservices::v1::CreateTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateTlsRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateTlsRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> CreateTlsRoute(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single TlsRoute.
  ///
  /// @param tls_route  Required. Updated TlsRoute resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  TlsRoute resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TlsRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L233}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> UpdateTlsRoute(
      google::cloud::networkservices::v1::TlsRoute const& tls_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateTlsRoute(
      NoAwaitTag, google::cloud::networkservices::v1::TlsRoute const& tls_route,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single TlsRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateTlsRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.TlsRoute] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.TlsRoute]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L35}
  /// [google.cloud.networkservices.v1.UpdateTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L233}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> UpdateTlsRoute(
      google::cloud::networkservices::v1::UpdateTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateTlsRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateTlsRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::TlsRoute>> UpdateTlsRoute(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single TlsRoute.
  ///
  /// @param name  Required. A name of the TlsRoute to delete. Must be in the format
  ///  `projects/*/locations/global/tlsRoutes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L247}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTlsRoute(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteTlsRoute(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single TlsRoute.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteTlsRouteRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteTlsRouteRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/tls_route.proto#L247}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTlsRoute(
      google::cloud::networkservices::v1::DeleteTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTlsRoute
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteTlsRoute(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteTlsRouteRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteTlsRoute
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteTlsRoute(google::longrunning::Operation const& operation,
                 Options opts = {});

  // clang-format off
  ///
  /// Lists ServiceBinding in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the ServiceBindings should be
  ///  listed, specified in the format `projects/*/locations/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.ServiceBinding], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListServiceBindingsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L91}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::ServiceBinding>
  ListServiceBindings(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists ServiceBinding in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListServiceBindingsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.ServiceBinding], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListServiceBindingsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L91}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::ServiceBinding>
  ListServiceBindings(
      google::cloud::networkservices::v1::ListServiceBindingsRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single ServiceBinding.
  ///
  /// @param name  Required. A name of the ServiceBinding to get. Must be in the format
  ///  `projects/*/locations/*/serviceBindings/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.ServiceBinding])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L127}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::ServiceBinding>
  GetServiceBinding(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single ServiceBinding.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetServiceBindingRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.ServiceBinding])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L127}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::ServiceBinding>
  GetServiceBinding(
      google::cloud::networkservices::v1::GetServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new ServiceBinding in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the ServiceBinding. Must be in the
  ///  format `projects/*/locations/*`.
  /// @param service_binding  Required. ServiceBinding resource to be created.
  /// @param service_binding_id  Required. Short name of the ServiceBinding resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceBinding] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L139}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  CreateServiceBinding(
      std::string const& parent,
      google::cloud::networkservices::v1::ServiceBinding const& service_binding,
      std::string const& service_binding_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateServiceBinding(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::ServiceBinding const& service_binding,
      std::string const& service_binding_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new ServiceBinding in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateServiceBindingRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceBinding] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L139}
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  CreateServiceBinding(
      google::cloud::networkservices::v1::CreateServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateServiceBinding(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceBinding
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  CreateServiceBinding(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single ServiceBinding.
  ///
  /// @param service_binding  Required. Updated ServiceBinding resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  ServiceBinding resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceBinding] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  /// [google.cloud.networkservices.v1.UpdateServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L157}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  UpdateServiceBinding(
      google::cloud::networkservices::v1::ServiceBinding const& service_binding,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateServiceBinding(
      NoAwaitTag,
      google::cloud::networkservices::v1::ServiceBinding const& service_binding,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single ServiceBinding.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateServiceBindingRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceBinding] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ServiceBinding]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L44}
  /// [google.cloud.networkservices.v1.UpdateServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L157}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  UpdateServiceBinding(
      google::cloud::networkservices::v1::UpdateServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateServiceBinding(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceBinding
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceBinding>>
  UpdateServiceBinding(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Deletes a single ServiceBinding.
  ///
  /// @param name  Required. A name of the ServiceBinding to delete. Must be in the format
  ///  `projects/*/locations/*/serviceBindings/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L171}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceBinding(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteServiceBinding(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single ServiceBinding.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteServiceBindingRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteServiceBindingRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_binding.proto#L171}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceBinding(
      google::cloud::networkservices::v1::DeleteServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceBinding
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteServiceBinding(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteServiceBindingRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceBinding
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceBinding(google::longrunning::Operation const& operation,
                       Options opts = {});

  // clang-format off
  ///
  /// Lists Meshes in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the Meshes should be
  ///  listed, specified in the format `projects/*/locations/global`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.Mesh], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListMeshesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L84}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::Mesh> ListMeshes(
      std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists Meshes in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListMeshesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.Mesh], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListMeshesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L84}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::Mesh> ListMeshes(
      google::cloud::networkservices::v1::ListMeshesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single Mesh.
  ///
  /// @param name  Required. A name of the Mesh to get. Must be in the format
  ///  `projects/*/locations/global/meshes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.Mesh])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L125}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::Mesh> GetMesh(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single Mesh.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetMeshRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.Mesh])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L125}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::Mesh> GetMesh(
      google::cloud::networkservices::v1::GetMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new Mesh in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the Mesh. Must be in the
  ///  format `projects/*/locations/global`.
  /// @param mesh  Required. Mesh resource to be created.
  /// @param mesh_id  Required. Short name of the Mesh resource to be created.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Mesh] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L137}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> CreateMesh(
      std::string const& parent,
      google::cloud::networkservices::v1::Mesh const& mesh,
      std::string const& mesh_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateMesh(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::Mesh const& mesh,
      std::string const& mesh_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new Mesh in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateMeshRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Mesh] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L137}
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> CreateMesh(
      google::cloud::networkservices::v1::CreateMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateMesh(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateMesh
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> CreateMesh(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single Mesh.
  ///
  /// @param mesh  Required. Updated Mesh resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  Mesh resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Mesh] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  /// [google.cloud.networkservices.v1.UpdateMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L155}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> UpdateMesh(
      google::cloud::networkservices::v1::Mesh const& mesh,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateMesh(
      NoAwaitTag, google::cloud::networkservices::v1::Mesh const& mesh,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single Mesh.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateMeshRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.Mesh] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.Mesh]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L40}
  /// [google.cloud.networkservices.v1.UpdateMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L155}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> UpdateMesh(
      google::cloud::networkservices::v1::UpdateMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateMesh(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateMesh
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::Mesh>> UpdateMesh(
      google::longrunning::Operation const& operation, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single Mesh.
  ///
  /// @param name  Required. A name of the Mesh to delete. Must be in the format
  ///  `projects/*/locations/global/meshes/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L169}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteMesh(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteMesh(NoAwaitTag,
                                                      std::string const& name,
                                                      Options opts = {});

  // clang-format off
  ///
  /// Deletes a single Mesh.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteMeshRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteMeshRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/mesh.proto#L169}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteMesh(
      google::cloud::networkservices::v1::DeleteMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteMesh
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteMesh(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteMeshRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteMesh
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteMesh(google::longrunning::Operation const& operation,
             Options opts = {});

  // clang-format off
  ///
  /// Lists ServiceLbPolicies in a given project and location.
  ///
  /// @param parent  Required. The project and location from which the ServiceLbPolicies should
  ///  be listed, specified in the format
  ///  `projects/{project}/locations/{location}`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListServiceLbPoliciesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L163}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::ServiceLbPolicy>
  ListServiceLbPolicies(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists ServiceLbPolicies in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListServiceLbPoliciesRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListServiceLbPoliciesRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L163}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::ServiceLbPolicy>
  ListServiceLbPolicies(
      google::cloud::networkservices::v1::ListServiceLbPoliciesRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single ServiceLbPolicy.
  ///
  /// @param name  Required. A name of the ServiceLbPolicy to get. Must be in the format
  ///  `projects/{project}/locations/{location}/serviceLbPolicies/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.ServiceLbPolicy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L200}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>
  GetServiceLbPolicy(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Gets details of a single ServiceLbPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetServiceLbPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.ServiceLbPolicy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L200}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>
  GetServiceLbPolicy(
      google::cloud::networkservices::v1::GetServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Creates a new ServiceLbPolicy in a given project and location.
  ///
  /// @param parent  Required. The parent resource of the ServiceLbPolicy. Must be in the
  ///  format `projects/{project}/locations/{location}`.
  /// @param service_lb_policy  Required. ServiceLbPolicy resource to be created.
  /// @param service_lb_policy_id  Required. Short name of the ServiceLbPolicy resource to be created.
  ///  E.g. for resource name
  ///  `projects/{project}/locations/{location}/serviceLbPolicies/{service_lb_policy_name}`.
  ///  the id is value of {service_lb_policy_name}
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L212}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  CreateServiceLbPolicy(
      std::string const& parent,
      google::cloud::networkservices::v1::ServiceLbPolicy const&
          service_lb_policy,
      std::string const& service_lb_policy_id, Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateServiceLbPolicy(
      NoAwaitTag, std::string const& parent,
      google::cloud::networkservices::v1::ServiceLbPolicy const&
          service_lb_policy,
      std::string const& service_lb_policy_id, Options opts = {});

  // clang-format off
  ///
  /// Creates a new ServiceLbPolicy in a given project and location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.CreateServiceLbPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.CreateServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L212}
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  CreateServiceLbPolicy(
      google::cloud::networkservices::v1::CreateServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> CreateServiceLbPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::CreateServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief CreateServiceLbPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  CreateServiceLbPolicy(google::longrunning::Operation const& operation,
                        Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single ServiceLbPolicy.
  ///
  /// @param service_lb_policy  Required. Updated ServiceLbPolicy resource.
  /// @param update_mask  Optional. Field mask is used to specify the fields to be overwritten in the
  ///  ServiceLbPolicy resource by the update.
  ///  The fields specified in the update_mask are relative to the resource, not
  ///  the full request. A field will be overwritten if it is in the mask. If the
  ///  user does not provide a mask then all fields will be overwritten.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  /// [google.cloud.networkservices.v1.UpdateServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L234}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  UpdateServiceLbPolicy(
      google::cloud::networkservices::v1::ServiceLbPolicy const&
          service_lb_policy,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateServiceLbPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::ServiceLbPolicy const&
          service_lb_policy,
      google::protobuf::FieldMask const& update_mask, Options opts = {});

  // clang-format off
  ///
  /// Updates the parameters of a single ServiceLbPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.UpdateServiceLbPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.ServiceLbPolicy] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ServiceLbPolicy]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L34}
  /// [google.cloud.networkservices.v1.UpdateServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L234}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  UpdateServiceLbPolicy(
      google::cloud::networkservices::v1::UpdateServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> UpdateServiceLbPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::UpdateServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief UpdateServiceLbPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::ServiceLbPolicy>>
  UpdateServiceLbPolicy(google::longrunning::Operation const& operation,
                        Options opts = {});

  // clang-format off
  ///
  /// Deletes a single ServiceLbPolicy.
  ///
  /// @param name  Required. A name of the ServiceLbPolicy to delete. Must be in the format
  ///  `projects/{project}/locations/{location}/serviceLbPolicies/*`.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L249}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceLbPolicy(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteServiceLbPolicy(
      NoAwaitTag, std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a single ServiceLbPolicy.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.DeleteServiceLbPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return A [`future`] that becomes satisfied when the LRO
  ///     ([Long Running Operation]) completes or the polling policy in effect
  ///     for this call is exhausted. The future is satisfied with an error if
  ///     the LRO completes with an error or the polling policy is exhausted.
  ///     In this case the [`StatusOr`] returned by the future contains the
  ///     error. If the LRO completes successfully the value of the future
  ///     contains the LRO's result. For this RPC the result is a
  ///     [google.cloud.networkservices.v1.OperationMetadata] proto message.
  ///     The C++ class representing this message is created by Protobuf, using
  ///     the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [Long Running Operation]: https://google.aip.dev/151
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.DeleteServiceLbPolicyRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/service_lb_policy.proto#L249}
  /// [google.cloud.networkservices.v1.OperationMetadata]: @googleapis_reference_link{google/cloud/networkservices/v1/common.proto#L48}
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceLbPolicy(
      google::cloud::networkservices::v1::DeleteServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceLbPolicy
  ///
  /// Specifying the [`NoAwaitTag`] immediately returns the
  /// [`google::longrunning::Operation`] that corresponds to the Long Running
  /// Operation that has been started. No polling for operation status occurs.
  ///
  /// [`NoAwaitTag`]: @ref google::cloud::NoAwaitTag
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> DeleteServiceLbPolicy(
      NoAwaitTag,
      google::cloud::networkservices::v1::DeleteServiceLbPolicyRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// @copybrief DeleteServiceLbPolicy
  ///
  /// This method accepts a `google::longrunning::Operation` that corresponds
  /// to a previously started Long Running Operation (LRO) and polls the status
  /// of the LRO in the background.
  ///
  // clang-format on
  future<StatusOr<google::cloud::networkservices::v1::OperationMetadata>>
  DeleteServiceLbPolicy(google::longrunning::Operation const& operation,
                        Options opts = {});

  // clang-format off
  ///
  /// Get a single RouteView of a Gateway.
  ///
  /// @param name  Required. Name of the GatewayRouteView resource.
  ///  Formats:
  ///    projects/{project}/locations/{location}/gateways/{gateway}/routeViews/{route_view}
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.GatewayRouteView])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GatewayRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L31}
  /// [google.cloud.networkservices.v1.GetGatewayRouteViewRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L91}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::GatewayRouteView>
  GetGatewayRouteView(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Get a single RouteView of a Gateway.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetGatewayRouteViewRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.GatewayRouteView])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GatewayRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L31}
  /// [google.cloud.networkservices.v1.GetGatewayRouteViewRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L91}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::GatewayRouteView>
  GetGatewayRouteView(
      google::cloud::networkservices::v1::GetGatewayRouteViewRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Get a single RouteView of a Mesh.
  ///
  /// @param name  Required. Name of the MeshRouteView resource.
  ///  Format:
  ///    projects/{project}/locations/{location}/meshes/{mesh}/routeViews/{route_view}
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.MeshRouteView])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetMeshRouteViewRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L104}
  /// [google.cloud.networkservices.v1.MeshRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L61}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::MeshRouteView> GetMeshRouteView(
      std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Get a single RouteView of a Mesh.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.GetMeshRouteViewRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.networkservices.v1.MeshRouteView])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GetMeshRouteViewRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L104}
  /// [google.cloud.networkservices.v1.MeshRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L61}
  ///
  // clang-format on
  StatusOr<google::cloud::networkservices::v1::MeshRouteView> GetMeshRouteView(
      google::cloud::networkservices::v1::GetMeshRouteViewRequest const&
          request,
      Options opts = {});

  // clang-format off
  ///
  /// Lists RouteViews
  ///
  /// @param parent  Required. The Gateway to which a Route is associated.
  ///  Formats:
  ///    projects/{project}/locations/{location}/gateways/{gateway}
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.GatewayRouteView], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GatewayRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L31}
  /// [google.cloud.networkservices.v1.ListGatewayRouteViewsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L117}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::GatewayRouteView>
  ListGatewayRouteViews(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists RouteViews
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListGatewayRouteViewsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.GatewayRouteView], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.GatewayRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L31}
  /// [google.cloud.networkservices.v1.ListGatewayRouteViewsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L117}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::GatewayRouteView>
  ListGatewayRouteViews(
      google::cloud::networkservices::v1::ListGatewayRouteViewsRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Lists RouteViews
  ///
  /// @param parent  Required. The Mesh to which a Route is associated.
  ///  Format:
  ///    projects/{project}/locations/{location}/meshes/{mesh}
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.MeshRouteView], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListMeshRouteViewsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L138}
  /// [google.cloud.networkservices.v1.MeshRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L61}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::MeshRouteView>
  ListMeshRouteViews(std::string const& parent, Options opts = {});

  // clang-format off
  ///
  /// Lists RouteViews
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.networkservices.v1.ListMeshRouteViewsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.networkservices.v1.MeshRouteView], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.networkservices.v1.ListMeshRouteViewsRequest]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L138}
  /// [google.cloud.networkservices.v1.MeshRouteView]: @googleapis_reference_link{google/cloud/networkservices/v1/route_view.proto#L61}
  ///
  // clang-format on
  StreamRange<google::cloud::networkservices::v1::MeshRouteView>
  ListMeshRouteViews(
      google::cloud::networkservices::v1::ListMeshRouteViewsRequest request,
      Options opts = {});

  // clang-format off
  ///
  /// Lists information about the supported locations for this service.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.location.ListLocationsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.cloud.location.Location], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.location.ListLocationsRequest]: @googleapis_reference_link{google/cloud/location/locations.proto#L58}
  /// [google.cloud.location.Location]: @googleapis_reference_link{google/cloud/location/locations.proto#L88}
  ///
  // clang-format on
  StreamRange<google::cloud::location::Location> ListLocations(
      google::cloud::location::ListLocationsRequest request, Options opts = {});

  // clang-format off
  ///
  /// Gets information about a location.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.cloud.location.GetLocationRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.cloud.location.Location])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.cloud.location.GetLocationRequest]: @googleapis_reference_link{google/cloud/location/locations.proto#L82}
  /// [google.cloud.location.Location]: @googleapis_reference_link{google/cloud/location/locations.proto#L88}
  ///
  // clang-format on
  StatusOr<google::cloud::location::Location> GetLocation(
      google::cloud::location::GetLocationRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Sets the access control policy on the specified resource. Replaces any
  /// existing policy.
  ///
  /// Can return `NOT_FOUND`, `INVALID_ARGUMENT`, and `PERMISSION_DENIED` errors.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.iam.v1.SetIamPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.iam.v1.Policy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.iam.v1.Policy]: @googleapis_reference_link{google/iam/v1/policy.proto#L102}
  /// [google.iam.v1.SetIamPolicyRequest]: @googleapis_reference_link{google/iam/v1/iam_policy.proto#L100}
  ///
  // clang-format on
  StatusOr<google::iam::v1::Policy> SetIamPolicy(
      google::iam::v1::SetIamPolicyRequest const& request, Options opts = {});

  // clang-format off
  ///
  /// Gets the access control policy for a resource.
  /// Returns an empty policy if the resource exists and does not have a policy
  /// set.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.iam.v1.GetIamPolicyRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.iam.v1.Policy])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.iam.v1.GetIamPolicyRequest]: @googleapis_reference_link{google/iam/v1/iam_policy.proto#L123}
  /// [google.iam.v1.Policy]: @googleapis_reference_link{google/iam/v1/policy.proto#L102}
  ///
  // clang-format on
  StatusOr<google::iam::v1::Policy> GetIamPolicy(
      google::iam::v1::GetIamPolicyRequest const& request, Options opts = {});

  // clang-format off
  ///
  /// Returns permissions that a caller has on the specified resource.
  /// If the resource does not exist, this will return an empty set of
  /// permissions, not a `NOT_FOUND` error.
  ///
  /// Note: This operation is designed to be used for building permission-aware
  /// UIs and command-line tools, not for authorization checking. This operation
  /// may "fail open" without warning.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.iam.v1.TestIamPermissionsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.iam.v1.TestIamPermissionsResponse])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.iam.v1.TestIamPermissionsRequest]: @googleapis_reference_link{google/iam/v1/iam_policy.proto#L137}
  /// [google.iam.v1.TestIamPermissionsResponse]: @googleapis_reference_link{google/iam/v1/iam_policy.proto#L153}
  ///
  // clang-format on
  StatusOr<google::iam::v1::TestIamPermissionsResponse> TestIamPermissions(
      google::iam::v1::TestIamPermissionsRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Lists operations that match the specified filter in the request. If the
  /// server doesn't support this method, it returns `UNIMPLEMENTED`.
  ///
  /// @param name  The name of the operation's parent resource.
  /// @param filter  The standard list filter.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.longrunning.Operation], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.ListOperationsRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L167}
  /// [google.longrunning.Operation]: @googleapis_reference_link{google/longrunning/operations.proto#L121}
  ///
  // clang-format on
  StreamRange<google::longrunning::Operation> ListOperations(
      std::string const& name, std::string const& filter, Options opts = {});

  // clang-format off
  ///
  /// Lists operations that match the specified filter in the request. If the
  /// server doesn't support this method, it returns `UNIMPLEMENTED`.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.longrunning.ListOperationsRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [StreamRange](@ref google::cloud::StreamRange)
  ///     to iterate of the results. See the documentation of this type for
  ///     details. In brief, this class has `begin()` and `end()` member
  ///     functions returning a iterator class meeting the
  ///     [input iterator requirements]. The value type for this iterator is a
  ///     [`StatusOr`] as the iteration may fail even after some values are
  ///     retrieved successfully, for example, if there is a network disconnect.
  ///     An empty set of results does not indicate an error, it indicates
  ///     that there are no resources meeting the request criteria.
  ///     On a successful iteration the `StatusOr<T>` contains elements of type
  ///     [google.longrunning.Operation], or rather,
  ///     the C++ class generated by Protobuf from that type. Please consult the
  ///     Protobuf documentation for details on the [Protobuf mapping rules].
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.ListOperationsRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L167}
  /// [google.longrunning.Operation]: @googleapis_reference_link{google/longrunning/operations.proto#L121}
  ///
  // clang-format on
  StreamRange<google::longrunning::Operation> ListOperations(
      google::longrunning::ListOperationsRequest request, Options opts = {});

  // clang-format off
  ///
  /// Gets the latest state of a long-running operation.  Clients can use this
  /// method to poll the operation result at intervals as recommended by the API
  /// service.
  ///
  /// @param name  The name of the operation resource.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.longrunning.Operation])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.GetOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L160}
  /// [google.longrunning.Operation]: @googleapis_reference_link{google/longrunning/operations.proto#L121}
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> GetOperation(std::string const& name,
                                                        Options opts = {});

  // clang-format off
  ///
  /// Gets the latest state of a long-running operation.  Clients can use this
  /// method to poll the operation result at intervals as recommended by the API
  /// service.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.longrunning.GetOperationRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return the result of the RPC. The response message type
  ///     ([google.longrunning.Operation])
  ///     is mapped to a C++ class using the [Protobuf mapping rules].
  ///     If the request fails, the [`StatusOr`] contains the error details.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.GetOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L160}
  /// [google.longrunning.Operation]: @googleapis_reference_link{google/longrunning/operations.proto#L121}
  ///
  // clang-format on
  StatusOr<google::longrunning::Operation> GetOperation(
      google::longrunning::GetOperationRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Deletes a long-running operation. This method indicates that the client is
  /// no longer interested in the operation result. It does not cancel the
  /// operation. If the server doesn't support this method, it returns
  /// `google.rpc.Code.UNIMPLEMENTED`.
  ///
  /// @param name  The name of the operation resource to be deleted.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [`Status`] object. If the request failed, the
  ///     status contains the details of the failure.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.DeleteOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L219}
  ///
  // clang-format on
  Status DeleteOperation(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Deletes a long-running operation. This method indicates that the client is
  /// no longer interested in the operation result. It does not cancel the
  /// operation. If the server doesn't support this method, it returns
  /// `google.rpc.Code.UNIMPLEMENTED`.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.longrunning.DeleteOperationRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [`Status`] object. If the request failed, the
  ///     status contains the details of the failure.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.DeleteOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L219}
  ///
  // clang-format on
  Status DeleteOperation(
      google::longrunning::DeleteOperationRequest const& request,
      Options opts = {});

  // clang-format off
  ///
  /// Starts asynchronous cancellation on a long-running operation.  The server
  /// makes a best effort to cancel the operation, but success is not
  /// guaranteed.  If the server doesn't support this method, it returns
  /// `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
  /// [Operations.GetOperation][google.longrunning.Operations.GetOperation] or
  /// other methods to check whether the cancellation succeeded or whether the
  /// operation completed despite cancellation. On successful cancellation,
  /// the operation is not deleted; instead, it becomes an operation with
  /// an [Operation.error][google.longrunning.Operation.error] value with a
  /// [google.rpc.Status.code][google.rpc.Status.code] of `1`, corresponding to
  /// `Code.CANCELLED`.
  ///
  /// @param name  The name of the operation resource to be cancelled.
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [`Status`] object. If the request failed, the
  ///     status contains the details of the failure.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.CancelOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L212}
  /// [google.longrunning.Operation.error]: @googleapis_reference_link{google/longrunning/operations.proto#L144}
  /// [google.longrunning.Operations.GetOperation]: @googleapis_reference_link{google/longrunning/operations.proto#L70}
  /// [google.rpc.Status.code]: @googleapis_reference_link{google/rpc/status.proto#L38}
  ///
  // clang-format on
  Status CancelOperation(std::string const& name, Options opts = {});

  // clang-format off
  ///
  /// Starts asynchronous cancellation on a long-running operation.  The server
  /// makes a best effort to cancel the operation, but success is not
  /// guaranteed.  If the server doesn't support this method, it returns
  /// `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
  /// [Operations.GetOperation][google.longrunning.Operations.GetOperation] or
  /// other methods to check whether the cancellation succeeded or whether the
  /// operation completed despite cancellation. On successful cancellation,
  /// the operation is not deleted; instead, it becomes an operation with
  /// an [Operation.error][google.longrunning.Operation.error] value with a
  /// [google.rpc.Status.code][google.rpc.Status.code] of `1`, corresponding to
  /// `Code.CANCELLED`.
  ///
  /// @param request Unary RPCs, such as the one wrapped by this
  ///     function, receive a single `request` proto message which includes all
  ///     the inputs for the RPC. In this case, the proto message is a
  ///     [google.longrunning.CancelOperationRequest].
  ///     Proto messages are converted to C++ classes by Protobuf, using the
  ///     [Protobuf mapping rules].
  /// @param opts Optional. Override the class-level options, such as retry and
  ///     backoff policies.
  /// @return a [`Status`] object. If the request failed, the
  ///     status contains the details of the failure.
  ///
  /// [Protobuf mapping rules]: https://protobuf.dev/reference/cpp/cpp-generated/
  /// [input iterator requirements]: https://en.cppreference.com/w/cpp/named_req/InputIterator
  /// [`std::string`]: https://en.cppreference.com/w/cpp/string/basic_string
  /// [`future`]: @ref google::cloud::future
  /// [`StatusOr`]: @ref google::cloud::StatusOr
  /// [`Status`]: @ref google::cloud::Status
  /// [google.longrunning.CancelOperationRequest]: @googleapis_reference_link{google/longrunning/operations.proto#L212}
  /// [google.longrunning.Operation.error]: @googleapis_reference_link{google/longrunning/operations.proto#L144}
  /// [google.longrunning.Operations.GetOperation]: @googleapis_reference_link{google/longrunning/operations.proto#L70}
  /// [google.rpc.Status.code]: @googleapis_reference_link{google/rpc/status.proto#L38}
  ///
  // clang-format on
  Status CancelOperation(
      google::longrunning::CancelOperationRequest const& request,
      Options opts = {});

 private:
  std::shared_ptr<NetworkServicesConnection> connection_;
  Options options_;
};

GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_END
}  // namespace networkservices_v1
}  // namespace cloud
}  // namespace google

#endif  // GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_NETWORKSERVICES_V1_NETWORK_SERVICES_CLIENT_H
