// 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/netapp/v1/cloud_netapp_service.proto

#include "google/cloud/netapp/v1/internal/net_app_connection_impl.h"
#include "google/cloud/netapp/v1/internal/net_app_option_defaults.h"
#include "google/cloud/background_threads.h"
#include "google/cloud/common_options.h"
#include "google/cloud/grpc_options.h"
#include "google/cloud/internal/async_long_running_operation.h"
#include "google/cloud/internal/pagination_range.h"
#include "google/cloud/internal/retry_loop.h"
#include <memory>
#include <utility>

namespace google {
namespace cloud {
namespace netapp_v1_internal {
GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_BEGIN
namespace {

std::unique_ptr<netapp_v1::NetAppRetryPolicy> retry_policy(
    Options const& options) {
  return options.get<netapp_v1::NetAppRetryPolicyOption>()->clone();
}

std::unique_ptr<BackoffPolicy> backoff_policy(Options const& options) {
  return options.get<netapp_v1::NetAppBackoffPolicyOption>()->clone();
}

std::unique_ptr<netapp_v1::NetAppConnectionIdempotencyPolicy>
idempotency_policy(Options const& options) {
  return options.get<netapp_v1::NetAppConnectionIdempotencyPolicyOption>()
      ->clone();
}

std::unique_ptr<PollingPolicy> polling_policy(Options const& options) {
  return options.get<netapp_v1::NetAppPollingPolicyOption>()->clone();
}

}  // namespace

NetAppConnectionImpl::NetAppConnectionImpl(
    std::unique_ptr<google::cloud::BackgroundThreads> background,
    std::shared_ptr<netapp_v1_internal::NetAppStub> stub, Options options)
    : background_(std::move(background)),
      stub_(std::move(stub)),
      options_(internal::MergeOptions(std::move(options),
                                      NetAppConnection::options())) {}

StreamRange<google::cloud::netapp::v1::StoragePool>
NetAppConnectionImpl::ListStoragePools(
    google::cloud::netapp::v1::ListStoragePoolsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListStoragePools(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::StoragePool>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListStoragePoolsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListStoragePoolsRequest const&
                       request) {
              return stub->ListStoragePools(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListStoragePoolsResponse r) {
        std::vector<google::cloud::netapp::v1::StoragePool> result(
            r.storage_pools().size());
        auto& messages = *r.mutable_storage_pools();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::CreateStoragePool(
    google::cloud::netapp::v1::CreateStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateStoragePool(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateStoragePoolRequest const& request) {
        return stub->AsyncCreateStoragePool(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::CreateStoragePool(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateStoragePool(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::CreateStoragePoolRequest const& request) {
        return stub_->CreateStoragePool(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::CreateStoragePool(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::StoragePool>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateStoragePool",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::StoragePool>
NetAppConnectionImpl::GetStoragePool(
    google::cloud::netapp::v1::GetStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetStoragePool(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetStoragePoolRequest const& request) {
        return stub_->GetStoragePool(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::UpdateStoragePool(
    google::cloud::netapp::v1::UpdateStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateStoragePool(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateStoragePoolRequest const& request) {
        return stub->AsyncUpdateStoragePool(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::UpdateStoragePool(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateStoragePool(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::UpdateStoragePoolRequest const& request) {
        return stub_->UpdateStoragePool(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::UpdateStoragePool(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::StoragePool>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateStoragePool",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteStoragePool(
    google::cloud::netapp::v1::DeleteStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteStoragePool(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteStoragePoolRequest const& request) {
        return stub->AsyncDeleteStoragePool(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::DeleteStoragePool(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteStoragePoolRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteStoragePool(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::DeleteStoragePoolRequest const& request) {
        return stub_->DeleteStoragePool(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteStoragePool(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteStoragePool",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::ValidateDirectoryService(
    google::cloud::netapp::v1::ValidateDirectoryServiceRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->ValidateDirectoryService(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::ValidateDirectoryServiceRequest const&
              request) {
        return stub->AsyncValidateDirectoryService(cq, std::move(context),
                                                   std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::ValidateDirectoryService(
    NoAwaitTag,
    google::cloud::netapp::v1::ValidateDirectoryServiceRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->ValidateDirectoryService(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::ValidateDirectoryServiceRequest const&
                 request) {
        return stub_->ValidateDirectoryService(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::ValidateDirectoryService(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to ValidateDirectoryService",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::SwitchActiveReplicaZone(
    google::cloud::netapp::v1::SwitchActiveReplicaZoneRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->SwitchActiveReplicaZone(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::SwitchActiveReplicaZoneRequest const&
              request) {
        return stub->AsyncSwitchActiveReplicaZone(cq, std::move(context),
                                                  std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::SwitchActiveReplicaZone(
    NoAwaitTag,
    google::cloud::netapp::v1::SwitchActiveReplicaZoneRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->SwitchActiveReplicaZone(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::SwitchActiveReplicaZoneRequest const&
                 request) {
        return stub_->SwitchActiveReplicaZone(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::StoragePool>>
NetAppConnectionImpl::SwitchActiveReplicaZone(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::StoragePool>>(
        internal::InvalidArgumentError(
            "operation does not correspond to SwitchActiveReplicaZone",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::StoragePool>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::StoragePool>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::Volume>
NetAppConnectionImpl::ListVolumes(
    google::cloud::netapp::v1::ListVolumesRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListVolumes(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::Volume>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListVolumesRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](
                grpc::ClientContext& context, Options const& options,
                google::cloud::netapp::v1::ListVolumesRequest const& request) {
              return stub->ListVolumes(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListVolumesResponse r) {
        std::vector<google::cloud::netapp::v1::Volume> result(
            r.volumes().size());
        auto& messages = *r.mutable_volumes();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::Volume> NetAppConnectionImpl::GetVolume(
    google::cloud::netapp::v1::GetVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetVolume(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetVolumeRequest const& request) {
        return stub_->GetVolume(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::CreateVolume(
    google::cloud::netapp::v1::CreateVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateVolume(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateVolumeRequest const& request) {
        return stub->AsyncCreateVolume(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateVolume(
    NoAwaitTag, google::cloud::netapp::v1::CreateVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateVolume(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateVolumeRequest const& request) {
        return stub_->CreateVolume(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::CreateVolume(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Volume>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateVolume",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::UpdateVolume(
    google::cloud::netapp::v1::UpdateVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateVolume(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateVolumeRequest const& request) {
        return stub->AsyncUpdateVolume(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateVolume(
    NoAwaitTag, google::cloud::netapp::v1::UpdateVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateVolume(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateVolumeRequest const& request) {
        return stub_->UpdateVolume(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::UpdateVolume(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Volume>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateVolume",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteVolume(
    google::cloud::netapp::v1::DeleteVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteVolume(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteVolumeRequest const& request) {
        return stub->AsyncDeleteVolume(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteVolume(
    NoAwaitTag, google::cloud::netapp::v1::DeleteVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteVolume(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteVolumeRequest const& request) {
        return stub_->DeleteVolume(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteVolume(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteVolume",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::RevertVolume(
    google::cloud::netapp::v1::RevertVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->RevertVolume(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::RevertVolumeRequest const& request) {
        return stub->AsyncRevertVolume(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::RevertVolume(
    NoAwaitTag, google::cloud::netapp::v1::RevertVolumeRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->RevertVolume(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::RevertVolumeRequest const& request) {
        return stub_->RevertVolume(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Volume>>
NetAppConnectionImpl::RevertVolume(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Volume>>(
        internal::InvalidArgumentError(
            "operation does not correspond to RevertVolume",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Volume>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Volume>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::Snapshot>
NetAppConnectionImpl::ListSnapshots(
    google::cloud::netapp::v1::ListSnapshotsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListSnapshots(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::Snapshot>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListSnapshotsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListSnapshotsRequest const&
                       request) {
              return stub->ListSnapshots(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListSnapshotsResponse r) {
        std::vector<google::cloud::netapp::v1::Snapshot> result(
            r.snapshots().size());
        auto& messages = *r.mutable_snapshots();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::Snapshot> NetAppConnectionImpl::GetSnapshot(
    google::cloud::netapp::v1::GetSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetSnapshot(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetSnapshotRequest const& request) {
        return stub_->GetSnapshot(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Snapshot>>
NetAppConnectionImpl::CreateSnapshot(
    google::cloud::netapp::v1::CreateSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateSnapshot(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Snapshot>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateSnapshotRequest const& request) {
        return stub->AsyncCreateSnapshot(cq, std::move(context),
                                         std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Snapshot>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateSnapshot(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateSnapshot(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateSnapshotRequest const& request) {
        return stub_->CreateSnapshot(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Snapshot>>
NetAppConnectionImpl::CreateSnapshot(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Snapshot>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateSnapshot",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Snapshot>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Snapshot>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteSnapshot(
    google::cloud::netapp::v1::DeleteSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteSnapshot(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteSnapshotRequest const& request) {
        return stub->AsyncDeleteSnapshot(cq, std::move(context),
                                         std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteSnapshot(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteSnapshot(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteSnapshotRequest const& request) {
        return stub_->DeleteSnapshot(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteSnapshot(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteSnapshot",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Snapshot>>
NetAppConnectionImpl::UpdateSnapshot(
    google::cloud::netapp::v1::UpdateSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateSnapshot(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Snapshot>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateSnapshotRequest const& request) {
        return stub->AsyncUpdateSnapshot(cq, std::move(context),
                                         std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Snapshot>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateSnapshot(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateSnapshotRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateSnapshot(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateSnapshotRequest const& request) {
        return stub_->UpdateSnapshot(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Snapshot>>
NetAppConnectionImpl::UpdateSnapshot(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Snapshot>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateSnapshot",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Snapshot>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Snapshot>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::ActiveDirectory>
NetAppConnectionImpl::ListActiveDirectories(
    google::cloud::netapp::v1::ListActiveDirectoriesRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency =
      idempotency_policy(*current)->ListActiveDirectories(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::ActiveDirectory>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListActiveDirectoriesRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](
                grpc::ClientContext& context, Options const& options,
                google::cloud::netapp::v1::ListActiveDirectoriesRequest const&
                    request) {
              return stub->ListActiveDirectories(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListActiveDirectoriesResponse r) {
        std::vector<google::cloud::netapp::v1::ActiveDirectory> result(
            r.active_directories().size());
        auto& messages = *r.mutable_active_directories();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::ActiveDirectory>
NetAppConnectionImpl::GetActiveDirectory(
    google::cloud::netapp::v1::GetActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetActiveDirectory(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::GetActiveDirectoryRequest const& request) {
        return stub_->GetActiveDirectory(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::ActiveDirectory>>
NetAppConnectionImpl::CreateActiveDirectory(
    google::cloud::netapp::v1::CreateActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateActiveDirectory(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::ActiveDirectory>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateActiveDirectoryRequest const&
              request) {
        return stub->AsyncCreateActiveDirectory(cq, std::move(context),
                                                std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::ActiveDirectory>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::CreateActiveDirectory(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateActiveDirectory(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateActiveDirectoryRequest const&
                 request) {
        return stub_->CreateActiveDirectory(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::ActiveDirectory>>
NetAppConnectionImpl::CreateActiveDirectory(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::ActiveDirectory>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateActiveDirectory",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::ActiveDirectory>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::ActiveDirectory>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::ActiveDirectory>>
NetAppConnectionImpl::UpdateActiveDirectory(
    google::cloud::netapp::v1::UpdateActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateActiveDirectory(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::ActiveDirectory>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateActiveDirectoryRequest const&
              request) {
        return stub->AsyncUpdateActiveDirectory(cq, std::move(context),
                                                std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::ActiveDirectory>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::UpdateActiveDirectory(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateActiveDirectory(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateActiveDirectoryRequest const&
                 request) {
        return stub_->UpdateActiveDirectory(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::ActiveDirectory>>
NetAppConnectionImpl::UpdateActiveDirectory(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::ActiveDirectory>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateActiveDirectory",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::ActiveDirectory>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::ActiveDirectory>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteActiveDirectory(
    google::cloud::netapp::v1::DeleteActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteActiveDirectory(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteActiveDirectoryRequest const&
              request) {
        return stub->AsyncDeleteActiveDirectory(cq, std::move(context),
                                                std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::DeleteActiveDirectory(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteActiveDirectoryRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteActiveDirectory(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteActiveDirectoryRequest const&
                 request) {
        return stub_->DeleteActiveDirectory(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteActiveDirectory(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteActiveDirectory",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::KmsConfig>
NetAppConnectionImpl::ListKmsConfigs(
    google::cloud::netapp::v1::ListKmsConfigsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListKmsConfigs(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::KmsConfig>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListKmsConfigsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListKmsConfigsRequest const&
                       request) {
              return stub->ListKmsConfigs(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListKmsConfigsResponse r) {
        std::vector<google::cloud::netapp::v1::KmsConfig> result(
            r.kms_configs().size());
        auto& messages = *r.mutable_kms_configs();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::CreateKmsConfig(
    google::cloud::netapp::v1::CreateKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateKmsConfig(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateKmsConfigRequest const& request) {
        return stub->AsyncCreateKmsConfig(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateKmsConfig(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateKmsConfig(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateKmsConfigRequest const& request) {
        return stub_->CreateKmsConfig(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::CreateKmsConfig(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::KmsConfig>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateKmsConfig",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::KmsConfig>
NetAppConnectionImpl::GetKmsConfig(
    google::cloud::netapp::v1::GetKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetKmsConfig(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetKmsConfigRequest const& request) {
        return stub_->GetKmsConfig(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::UpdateKmsConfig(
    google::cloud::netapp::v1::UpdateKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateKmsConfig(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateKmsConfigRequest const& request) {
        return stub->AsyncUpdateKmsConfig(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateKmsConfig(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateKmsConfig(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateKmsConfigRequest const& request) {
        return stub_->UpdateKmsConfig(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::UpdateKmsConfig(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::KmsConfig>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateKmsConfig",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::EncryptVolumes(
    google::cloud::netapp::v1::EncryptVolumesRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->EncryptVolumes(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::EncryptVolumesRequest const& request) {
        return stub->AsyncEncryptVolumes(cq, std::move(context),
                                         std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::EncryptVolumes(
    NoAwaitTag,
    google::cloud::netapp::v1::EncryptVolumesRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->EncryptVolumes(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::EncryptVolumesRequest const& request) {
        return stub_->EncryptVolumes(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::KmsConfig>>
NetAppConnectionImpl::EncryptVolumes(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::KmsConfig>>(
        internal::InvalidArgumentError(
            "operation does not correspond to EncryptVolumes",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::KmsConfig>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::KmsConfig>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::VerifyKmsConfigResponse>
NetAppConnectionImpl::VerifyKmsConfig(
    google::cloud::netapp::v1::VerifyKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->VerifyKmsConfig(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::VerifyKmsConfigRequest const& request) {
        return stub_->VerifyKmsConfig(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteKmsConfig(
    google::cloud::netapp::v1::DeleteKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteKmsConfig(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteKmsConfigRequest const& request) {
        return stub->AsyncDeleteKmsConfig(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteKmsConfig(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteKmsConfigRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteKmsConfig(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteKmsConfigRequest const& request) {
        return stub_->DeleteKmsConfig(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteKmsConfig(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteKmsConfig",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::Replication>
NetAppConnectionImpl::ListReplications(
    google::cloud::netapp::v1::ListReplicationsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListReplications(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::Replication>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListReplicationsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListReplicationsRequest const&
                       request) {
              return stub->ListReplications(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListReplicationsResponse r) {
        std::vector<google::cloud::netapp::v1::Replication> result(
            r.replications().size());
        auto& messages = *r.mutable_replications();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::Replication>
NetAppConnectionImpl::GetReplication(
    google::cloud::netapp::v1::GetReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetReplication(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetReplicationRequest const& request) {
        return stub_->GetReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::CreateReplication(
    google::cloud::netapp::v1::CreateReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateReplicationRequest const& request) {
        return stub->AsyncCreateReplication(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::CreateReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateReplication(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::CreateReplicationRequest const& request) {
        return stub_->CreateReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::CreateReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteReplication(
    google::cloud::netapp::v1::DeleteReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteReplicationRequest const& request) {
        return stub->AsyncDeleteReplication(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::DeleteReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteReplication(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::DeleteReplicationRequest const& request) {
        return stub_->DeleteReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::UpdateReplication(
    google::cloud::netapp::v1::UpdateReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateReplicationRequest const& request) {
        return stub->AsyncUpdateReplication(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::UpdateReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateReplication(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::UpdateReplicationRequest const& request) {
        return stub_->UpdateReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::UpdateReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::StopReplication(
    google::cloud::netapp::v1::StopReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->StopReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::StopReplicationRequest const& request) {
        return stub->AsyncStopReplication(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::StopReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::StopReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->StopReplication(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::StopReplicationRequest const& request) {
        return stub_->StopReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::StopReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to StopReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::ResumeReplication(
    google::cloud::netapp::v1::ResumeReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->ResumeReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::ResumeReplicationRequest const& request) {
        return stub->AsyncResumeReplication(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::ResumeReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::ResumeReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->ResumeReplication(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::ResumeReplicationRequest const& request) {
        return stub_->ResumeReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::ResumeReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to ResumeReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::ReverseReplicationDirection(
    google::cloud::netapp::v1::ReverseReplicationDirectionRequest const&
        request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->ReverseReplicationDirection(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::ReverseReplicationDirectionRequest const&
              request) {
        return stub->AsyncReverseReplicationDirection(
            cq, std::move(context), std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::ReverseReplicationDirection(
    NoAwaitTag,
    google::cloud::netapp::v1::ReverseReplicationDirectionRequest const&
        request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->ReverseReplicationDirection(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::ReverseReplicationDirectionRequest const&
              request) {
        return stub_->ReverseReplicationDirection(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::ReverseReplicationDirection(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to ReverseReplicationDirection",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::EstablishPeering(
    google::cloud::netapp::v1::EstablishPeeringRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->EstablishPeering(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::EstablishPeeringRequest const& request) {
        return stub->AsyncEstablishPeering(cq, std::move(context),
                                           std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::EstablishPeering(
    NoAwaitTag,
    google::cloud::netapp::v1::EstablishPeeringRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->EstablishPeering(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::EstablishPeeringRequest const& request) {
        return stub_->EstablishPeering(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::EstablishPeering(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to EstablishPeering",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::SyncReplication(
    google::cloud::netapp::v1::SyncReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->SyncReplication(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::SyncReplicationRequest const& request) {
        return stub->AsyncSyncReplication(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::SyncReplication(
    NoAwaitTag,
    google::cloud::netapp::v1::SyncReplicationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->SyncReplication(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::SyncReplicationRequest const& request) {
        return stub_->SyncReplication(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Replication>>
NetAppConnectionImpl::SyncReplication(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Replication>>(
        internal::InvalidArgumentError(
            "operation does not correspond to SyncReplication",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Replication>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Replication>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupVault>>
NetAppConnectionImpl::CreateBackupVault(
    google::cloud::netapp::v1::CreateBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateBackupVault(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::BackupVault>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateBackupVaultRequest const& request) {
        return stub->AsyncCreateBackupVault(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupVault>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::CreateBackupVault(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateBackupVault(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::CreateBackupVaultRequest const& request) {
        return stub_->CreateBackupVault(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupVault>>
NetAppConnectionImpl::CreateBackupVault(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::BackupVault>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateBackupVault",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::BackupVault>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupVault>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::BackupVault>
NetAppConnectionImpl::GetBackupVault(
    google::cloud::netapp::v1::GetBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetBackupVault(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetBackupVaultRequest const& request) {
        return stub_->GetBackupVault(context, options, request);
      },
      *current, request, __func__);
}

StreamRange<google::cloud::netapp::v1::BackupVault>
NetAppConnectionImpl::ListBackupVaults(
    google::cloud::netapp::v1::ListBackupVaultsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListBackupVaults(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::BackupVault>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListBackupVaultsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListBackupVaultsRequest const&
                       request) {
              return stub->ListBackupVaults(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListBackupVaultsResponse r) {
        std::vector<google::cloud::netapp::v1::BackupVault> result(
            r.backup_vaults().size());
        auto& messages = *r.mutable_backup_vaults();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

future<StatusOr<google::cloud::netapp::v1::BackupVault>>
NetAppConnectionImpl::UpdateBackupVault(
    google::cloud::netapp::v1::UpdateBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateBackupVault(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::BackupVault>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateBackupVaultRequest const& request) {
        return stub->AsyncUpdateBackupVault(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupVault>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::UpdateBackupVault(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateBackupVault(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::UpdateBackupVaultRequest const& request) {
        return stub_->UpdateBackupVault(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupVault>>
NetAppConnectionImpl::UpdateBackupVault(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::BackupVault>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateBackupVault",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::BackupVault>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupVault>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackupVault(
    google::cloud::netapp::v1::DeleteBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteBackupVault(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteBackupVaultRequest const& request) {
        return stub->AsyncDeleteBackupVault(cq, std::move(context),
                                            std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::DeleteBackupVault(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteBackupVaultRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteBackupVault(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::DeleteBackupVaultRequest const& request) {
        return stub_->DeleteBackupVault(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackupVault(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteBackupVault",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Backup>>
NetAppConnectionImpl::CreateBackup(
    google::cloud::netapp::v1::CreateBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateBackup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Backup>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateBackupRequest const& request) {
        return stub->AsyncCreateBackup(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Backup>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateBackup(
    NoAwaitTag, google::cloud::netapp::v1::CreateBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateBackup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateBackupRequest const& request) {
        return stub_->CreateBackup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Backup>>
NetAppConnectionImpl::CreateBackup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Backup>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateBackup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Backup>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Backup>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::Backup> NetAppConnectionImpl::GetBackup(
    google::cloud::netapp::v1::GetBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetBackup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetBackupRequest const& request) {
        return stub_->GetBackup(context, options, request);
      },
      *current, request, __func__);
}

StreamRange<google::cloud::netapp::v1::Backup>
NetAppConnectionImpl::ListBackups(
    google::cloud::netapp::v1::ListBackupsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListBackups(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::Backup>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListBackupsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](
                grpc::ClientContext& context, Options const& options,
                google::cloud::netapp::v1::ListBackupsRequest const& request) {
              return stub->ListBackups(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListBackupsResponse r) {
        std::vector<google::cloud::netapp::v1::Backup> result(
            r.backups().size());
        auto& messages = *r.mutable_backups();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackup(
    google::cloud::netapp::v1::DeleteBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteBackup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteBackupRequest const& request) {
        return stub->AsyncDeleteBackup(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteBackup(
    NoAwaitTag, google::cloud::netapp::v1::DeleteBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteBackup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteBackupRequest const& request) {
        return stub_->DeleteBackup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteBackup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::Backup>>
NetAppConnectionImpl::UpdateBackup(
    google::cloud::netapp::v1::UpdateBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateBackup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::Backup>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateBackupRequest const& request) {
        return stub->AsyncUpdateBackup(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Backup>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateBackup(
    NoAwaitTag, google::cloud::netapp::v1::UpdateBackupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateBackup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateBackupRequest const& request) {
        return stub_->UpdateBackup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::Backup>>
NetAppConnectionImpl::UpdateBackup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::Backup>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateBackup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::Backup>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::Backup>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>
NetAppConnectionImpl::CreateBackupPolicy(
    google::cloud::netapp::v1::CreateBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateBackupPolicy(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::BackupPolicy>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateBackupPolicyRequest const& request) {
        return stub->AsyncCreateBackupPolicy(cq, std::move(context),
                                             std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupPolicy>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::CreateBackupPolicy(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateBackupPolicy(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::CreateBackupPolicyRequest const& request) {
        return stub_->CreateBackupPolicy(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>
NetAppConnectionImpl::CreateBackupPolicy(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateBackupPolicy",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::BackupPolicy>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupPolicy>,
      polling_policy(*current), __func__);
}

StatusOr<google::cloud::netapp::v1::BackupPolicy>
NetAppConnectionImpl::GetBackupPolicy(
    google::cloud::netapp::v1::GetBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetBackupPolicy(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetBackupPolicyRequest const& request) {
        return stub_->GetBackupPolicy(context, options, request);
      },
      *current, request, __func__);
}

StreamRange<google::cloud::netapp::v1::BackupPolicy>
NetAppConnectionImpl::ListBackupPolicies(
    google::cloud::netapp::v1::ListBackupPoliciesRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListBackupPolicies(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::BackupPolicy>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListBackupPoliciesRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListBackupPoliciesRequest const&
                       request) {
              return stub->ListBackupPolicies(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListBackupPoliciesResponse r) {
        std::vector<google::cloud::netapp::v1::BackupPolicy> result(
            r.backup_policies().size());
        auto& messages = *r.mutable_backup_policies();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>
NetAppConnectionImpl::UpdateBackupPolicy(
    google::cloud::netapp::v1::UpdateBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateBackupPolicy(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::BackupPolicy>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateBackupPolicyRequest const& request) {
        return stub->AsyncUpdateBackupPolicy(cq, std::move(context),
                                             std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupPolicy>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::UpdateBackupPolicy(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateBackupPolicy(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::UpdateBackupPolicyRequest const& request) {
        return stub_->UpdateBackupPolicy(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>
NetAppConnectionImpl::UpdateBackupPolicy(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::BackupPolicy>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateBackupPolicy",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::BackupPolicy>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::BackupPolicy>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackupPolicy(
    google::cloud::netapp::v1::DeleteBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteBackupPolicy(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteBackupPolicyRequest const& request) {
        return stub->AsyncDeleteBackupPolicy(cq, std::move(context),
                                             std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::DeleteBackupPolicy(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteBackupPolicyRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteBackupPolicy(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::DeleteBackupPolicyRequest const& request) {
        return stub_->DeleteBackupPolicy(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteBackupPolicy(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteBackupPolicy",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::QuotaRule>
NetAppConnectionImpl::ListQuotaRules(
    google::cloud::netapp::v1::ListQuotaRulesRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListQuotaRules(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::QuotaRule>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListQuotaRulesRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListQuotaRulesRequest const&
                       request) {
              return stub->ListQuotaRules(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListQuotaRulesResponse r) {
        std::vector<google::cloud::netapp::v1::QuotaRule> result(
            r.quota_rules().size());
        auto& messages = *r.mutable_quota_rules();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::QuotaRule>
NetAppConnectionImpl::GetQuotaRule(
    google::cloud::netapp::v1::GetQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetQuotaRule(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetQuotaRuleRequest const& request) {
        return stub_->GetQuotaRule(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::QuotaRule>>
NetAppConnectionImpl::CreateQuotaRule(
    google::cloud::netapp::v1::CreateQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateQuotaRule(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::QuotaRule>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateQuotaRuleRequest const& request) {
        return stub->AsyncCreateQuotaRule(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::QuotaRule>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateQuotaRule(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateQuotaRule(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateQuotaRuleRequest const& request) {
        return stub_->CreateQuotaRule(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::QuotaRule>>
NetAppConnectionImpl::CreateQuotaRule(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::QuotaRule>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateQuotaRule",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::QuotaRule>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::QuotaRule>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::QuotaRule>>
NetAppConnectionImpl::UpdateQuotaRule(
    google::cloud::netapp::v1::UpdateQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateQuotaRule(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::QuotaRule>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateQuotaRuleRequest const& request) {
        return stub->AsyncUpdateQuotaRule(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::QuotaRule>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateQuotaRule(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateQuotaRule(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateQuotaRuleRequest const& request) {
        return stub_->UpdateQuotaRule(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::QuotaRule>>
NetAppConnectionImpl::UpdateQuotaRule(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::QuotaRule>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateQuotaRule",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::QuotaRule>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::QuotaRule>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteQuotaRule(
    google::cloud::netapp::v1::DeleteQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteQuotaRule(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteQuotaRuleRequest const& request) {
        return stub->AsyncDeleteQuotaRule(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteQuotaRule(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteQuotaRuleRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteQuotaRule(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteQuotaRuleRequest const& request) {
        return stub_->DeleteQuotaRule(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteQuotaRule(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteQuotaRule",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::RestoreBackupFilesResponse>>
NetAppConnectionImpl::RestoreBackupFiles(
    google::cloud::netapp::v1::RestoreBackupFilesRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->RestoreBackupFiles(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::RestoreBackupFilesResponse>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::RestoreBackupFilesRequest const& request) {
        return stub->AsyncRestoreBackupFiles(cq, std::move(context),
                                             std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::RestoreBackupFilesResponse>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation>
NetAppConnectionImpl::RestoreBackupFiles(
    NoAwaitTag,
    google::cloud::netapp::v1::RestoreBackupFilesRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->RestoreBackupFiles(request),
      [this](
          grpc::ClientContext& context, Options const& options,
          google::cloud::netapp::v1::RestoreBackupFilesRequest const& request) {
        return stub_->RestoreBackupFiles(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::RestoreBackupFilesResponse>>
NetAppConnectionImpl::RestoreBackupFiles(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::RestoreBackupFilesResponse>>(
        internal::InvalidArgumentError(
            "operation does not correspond to RestoreBackupFiles",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::RestoreBackupFilesResponse>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::RestoreBackupFilesResponse>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::netapp::v1::HostGroup>
NetAppConnectionImpl::ListHostGroups(
    google::cloud::netapp::v1::ListHostGroupsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListHostGroups(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::netapp::v1::HostGroup>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::netapp::v1::ListHostGroupsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::cloud::netapp::v1::ListHostGroupsRequest const&
                       request) {
              return stub->ListHostGroups(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::netapp::v1::ListHostGroupsResponse r) {
        std::vector<google::cloud::netapp::v1::HostGroup> result(
            r.host_groups().size());
        auto& messages = *r.mutable_host_groups();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::netapp::v1::HostGroup>
NetAppConnectionImpl::GetHostGroup(
    google::cloud::netapp::v1::GetHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetHostGroup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::GetHostGroupRequest const& request) {
        return stub_->GetHostGroup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::HostGroup>>
NetAppConnectionImpl::CreateHostGroup(
    google::cloud::netapp::v1::CreateHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->CreateHostGroup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::HostGroup>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::CreateHostGroupRequest const& request) {
        return stub->AsyncCreateHostGroup(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::HostGroup>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::CreateHostGroup(
    NoAwaitTag,
    google::cloud::netapp::v1::CreateHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CreateHostGroup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::CreateHostGroupRequest const& request) {
        return stub_->CreateHostGroup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::HostGroup>>
NetAppConnectionImpl::CreateHostGroup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::HostGroup>>(
        internal::InvalidArgumentError(
            "operation does not correspond to CreateHostGroup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::HostGroup>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::HostGroup>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::HostGroup>>
NetAppConnectionImpl::UpdateHostGroup(
    google::cloud::netapp::v1::UpdateHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->UpdateHostGroup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::HostGroup>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::UpdateHostGroupRequest const& request) {
        return stub->AsyncUpdateHostGroup(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::HostGroup>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::UpdateHostGroup(
    NoAwaitTag,
    google::cloud::netapp::v1::UpdateHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->UpdateHostGroup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::UpdateHostGroupRequest const& request) {
        return stub_->UpdateHostGroup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::HostGroup>>
NetAppConnectionImpl::UpdateHostGroup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<StatusOr<google::cloud::netapp::v1::HostGroup>>(
        internal::InvalidArgumentError(
            "operation does not correspond to UpdateHostGroup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::HostGroup>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultResponse<
          google::cloud::netapp::v1::HostGroup>,
      polling_policy(*current), __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteHostGroup(
    google::cloud::netapp::v1::DeleteHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto request_copy = request;
  auto const idempotent =
      idempotency_policy(*current)->DeleteHostGroup(request_copy);
  return google::cloud::internal::AsyncLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, std::move(request_copy),
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::cloud::netapp::v1::DeleteHostGroupRequest const& request) {
        return stub->AsyncDeleteHostGroup(cq, std::move(context),
                                          std::move(options), request);
      },
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      retry_policy(*current), backoff_policy(*current), idempotent,
      polling_policy(*current), __func__);
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::DeleteHostGroup(
    NoAwaitTag,
    google::cloud::netapp::v1::DeleteHostGroupRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteHostGroup(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::netapp::v1::DeleteHostGroupRequest const& request) {
        return stub_->DeleteHostGroup(context, options, request);
      },
      *current, request, __func__);
}

future<StatusOr<google::cloud::netapp::v1::OperationMetadata>>
NetAppConnectionImpl::DeleteHostGroup(
    google::longrunning::Operation const& operation) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  if (!operation.metadata()
           .Is<typename google::cloud::netapp::v1::OperationMetadata>()) {
    return make_ready_future<
        StatusOr<google::cloud::netapp::v1::OperationMetadata>>(
        internal::InvalidArgumentError(
            "operation does not correspond to DeleteHostGroup",
            GCP_ERROR_INFO().WithMetadata("operation",
                                          operation.metadata().DebugString())));
  }

  return google::cloud::internal::AsyncAwaitLongRunningOperation<
      google::cloud::netapp::v1::OperationMetadata>(
      background_->cq(), current, operation,
      [stub = stub_](google::cloud::CompletionQueue& cq,
                     std::shared_ptr<grpc::ClientContext> context,
                     google::cloud::internal::ImmutableOptions options,
                     google::longrunning::GetOperationRequest const& request) {
        return stub->AsyncGetOperation(cq, std::move(context),
                                       std::move(options), request);
      },
      [stub = stub_](
          google::cloud::CompletionQueue& cq,
          std::shared_ptr<grpc::ClientContext> context,
          google::cloud::internal::ImmutableOptions options,
          google::longrunning::CancelOperationRequest const& request) {
        return stub->AsyncCancelOperation(cq, std::move(context),
                                          std::move(options), request);
      },
      &google::cloud::internal::ExtractLongRunningResultMetadata<
          google::cloud::netapp::v1::OperationMetadata>,
      polling_policy(*current), __func__);
}

StreamRange<google::cloud::location::Location>
NetAppConnectionImpl::ListLocations(
    google::cloud::location::ListLocationsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListLocations(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::cloud::location::Location>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::cloud::location::ListLocationsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](
                grpc::ClientContext& context, Options const& options,
                google::cloud::location::ListLocationsRequest const& request) {
              return stub->ListLocations(context, options, request);
            },
            options, r, function_name);
      },
      [](google::cloud::location::ListLocationsResponse r) {
        std::vector<google::cloud::location::Location> result(
            r.locations().size());
        auto& messages = *r.mutable_locations();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::cloud::location::Location> NetAppConnectionImpl::GetLocation(
    google::cloud::location::GetLocationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetLocation(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::cloud::location::GetLocationRequest const& request) {
        return stub_->GetLocation(context, options, request);
      },
      *current, request, __func__);
}

StreamRange<google::longrunning::Operation>
NetAppConnectionImpl::ListOperations(
    google::longrunning::ListOperationsRequest request) {
  request.clear_page_token();
  auto current = google::cloud::internal::SaveCurrentOptions();
  auto idempotency = idempotency_policy(*current)->ListOperations(request);
  char const* function_name = __func__;
  return google::cloud::internal::MakePaginationRange<
      StreamRange<google::longrunning::Operation>>(
      current, std::move(request),
      [idempotency, function_name, stub = stub_,
       retry = std::shared_ptr<netapp_v1::NetAppRetryPolicy>(
           retry_policy(*current)),
       backoff = std::shared_ptr<BackoffPolicy>(backoff_policy(*current))](
          Options const& options,
          google::longrunning::ListOperationsRequest const& r) {
        return google::cloud::internal::RetryLoop(
            retry->clone(), backoff->clone(), idempotency,
            [stub](grpc::ClientContext& context, Options const& options,
                   google::longrunning::ListOperationsRequest const& request) {
              return stub->ListOperations(context, options, request);
            },
            options, r, function_name);
      },
      [](google::longrunning::ListOperationsResponse r) {
        std::vector<google::longrunning::Operation> result(
            r.operations().size());
        auto& messages = *r.mutable_operations();
        std::move(messages.begin(), messages.end(), result.begin());
        return result;
      });
}

StatusOr<google::longrunning::Operation> NetAppConnectionImpl::GetOperation(
    google::longrunning::GetOperationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->GetOperation(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::longrunning::GetOperationRequest const& request) {
        return stub_->GetOperation(context, options, request);
      },
      *current, request, __func__);
}

Status NetAppConnectionImpl::DeleteOperation(
    google::longrunning::DeleteOperationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->DeleteOperation(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::longrunning::DeleteOperationRequest const& request) {
        return stub_->DeleteOperation(context, options, request);
      },
      *current, request, __func__);
}

Status NetAppConnectionImpl::CancelOperation(
    google::longrunning::CancelOperationRequest const& request) {
  auto current = google::cloud::internal::SaveCurrentOptions();
  return google::cloud::internal::RetryLoop(
      retry_policy(*current), backoff_policy(*current),
      idempotency_policy(*current)->CancelOperation(request),
      [this](grpc::ClientContext& context, Options const& options,
             google::longrunning::CancelOperationRequest const& request) {
        return stub_->CancelOperation(context, options, request);
      },
      *current, request, __func__);
}

GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_END
}  // namespace netapp_v1_internal
}  // namespace cloud
}  // namespace google
