/*
 * Copyright 2026 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 protocol buffer compiler.  DO NOT EDIT!
// NO CHECKED-IN PROTOBUF GENCODE
// source: google/api/usage.proto
// Protobuf Java Version: 4.33.2

package com.google.api;

/**
 *
 *
 * <pre>
 * Configuration controlling usage of a service.
 * </pre>
 *
 * Protobuf type {@code google.api.Usage}
 */
@com.google.protobuf.Generated
public final class Usage extends com.google.protobuf.GeneratedMessage
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  /**
   *
   *
   * <pre>
   * Requirements that must be satisfied before a consumer project can use the
   * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
   * for example 'serviceusage.googleapis.com/billing-enabled'.
   *
   * For Google APIs, a Terms of Service requirement must be included here.
   * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
   * Other Google APIs should include
   * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
   * included based on the business needs.
   * </pre>
   *
   * <code>repeated string requirements = 1;</code>
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  /**
   *
   *
   * <pre>
   * Requirements that must be satisfied before a consumer project can use the
   * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
   * for example 'serviceusage.googleapis.com/billing-enabled'.
   *
   * For Google APIs, a Terms of Service requirement must be included here.
   * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
   * Other Google APIs should include
   * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
   * included based on the business needs.
   * </pre>
   *
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  /**
   *
   *
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   * Requirements that must be satisfied before a consumer project can use the
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   *
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   * Other Google APIs should include
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  /**
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   * Requirements that must be satisfied before a consumer project can use the
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   * for example 'serviceusage.googleapis.com/billing-enabled'.
   *
   * For Google APIs, a Terms of Service requirement must be included here.
   * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
   * Other Google APIs should include
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   * included based on the business needs.
   * </pre>
   *
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  /**
   *
   *
   * <pre>
   * A list of usage rules that apply to individual API methods.
   *
   * **NOTE:** All service configuration rules follow "last one wins" order.
   * </pre>
   *
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   *
   *
   * <pre>
   * A list of usage rules that apply to individual API methods.
   *
   * **NOTE:** All service configuration rules follow "last one wins" order.
   * </pre>
   *
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  /**
   *
   *
   * <pre>
   * A list of usage rules that apply to individual API methods.
   *
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   * </pre>
   *
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   *
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   *
   * <pre>
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   *
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   *
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  /**
   *
   *
   * <pre>
   * The full resource name of a channel used for sending notifications to the
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   *
   * Google Service Management currently only supports
   * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
   * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
   * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
   * documented in https://cloud.google.com/pubsub/docs/overview.
   * </pre>
   *
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   *
   * <pre>
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   *
   * Google Service Management currently only supports
   * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
   * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
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  /**
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   * <pre>
   * Configuration controlling usage of a service.
   * </pre>
   *
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     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
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     * Other Google APIs should include
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     * Other Google APIs should include
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     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param index The index of the element to return.
     * @return The requirements at the given index.
     */
    public java.lang.String getRequirements(int index) {
      return requirements_.get(index);
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param index The index of the value to return.
     * @return The bytes of the requirements at the given index.
     */
    public com.google.protobuf.ByteString getRequirementsBytes(int index) {
      return requirements_.getByteString(index);
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param index The index to set the value at.
     * @param value The requirements to set.
     * @return This builder for chaining.
     */
    public Builder setRequirements(int index, java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureRequirementsIsMutable();
      requirements_.set(index, value);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param value The requirements to add.
     * @return This builder for chaining.
     */
    public Builder addRequirements(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureRequirementsIsMutable();
      requirements_.add(value);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param values The requirements to add.
     * @return This builder for chaining.
     */
    public Builder addAllRequirements(java.lang.Iterable<java.lang.String> values) {
      ensureRequirementsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, requirements_);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearRequirements() {
      requirements_ = com.google.protobuf.LazyStringArrayList.emptyList();
      bitField0_ = (bitField0_ & ~0x00000001);
      ;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Requirements that must be satisfied before a consumer project can use the
     * service. Each requirement is of the form &lt;service.name&gt;/&lt;requirement-id&gt;;
     * for example 'serviceusage.googleapis.com/billing-enabled'.
     *
     * For Google APIs, a Terms of Service requirement must be included here.
     * Google Cloud APIs must include "serviceusage.googleapis.com/tos/cloud".
     * Other Google APIs should include
     * "serviceusage.googleapis.com/tos/universal". Additional ToS can be
     * included based on the business needs.
     * </pre>
     *
     * <code>repeated string requirements = 1;</code>
     *
     * @param value The bytes of the requirements to add.
     * @return This builder for chaining.
     */
    public Builder addRequirementsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureRequirementsIsMutable();
      requirements_.add(value);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    private java.util.List<com.google.api.UsageRule> rules_ = java.util.Collections.emptyList();

    private void ensureRulesIsMutable() {
      if (!((bitField0_ & 0x00000002) != 0)) {
        rules_ = new java.util.ArrayList<com.google.api.UsageRule>(rules_);
        bitField0_ |= 0x00000002;
      }
    }

    private com.google.protobuf.RepeatedFieldBuilder<
            com.google.api.UsageRule,
            com.google.api.UsageRule.Builder,
            com.google.api.UsageRuleOrBuilder>
        rulesBuilder_;

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public java.util.List<com.google.api.UsageRule> getRulesList() {
      if (rulesBuilder_ == null) {
        return java.util.Collections.unmodifiableList(rules_);
      } else {
        return rulesBuilder_.getMessageList();
      }
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public int getRulesCount() {
      if (rulesBuilder_ == null) {
        return rules_.size();
      } else {
        return rulesBuilder_.getCount();
      }
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public com.google.api.UsageRule getRules(int index) {
      if (rulesBuilder_ == null) {
        return rules_.get(index);
      } else {
        return rulesBuilder_.getMessage(index);
      }
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder setRules(int index, com.google.api.UsageRule value) {
      if (rulesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureRulesIsMutable();
        rules_.set(index, value);
        onChanged();
      } else {
        rulesBuilder_.setMessage(index, value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder setRules(int index, com.google.api.UsageRule.Builder builderForValue) {
      if (rulesBuilder_ == null) {
        ensureRulesIsMutable();
        rules_.set(index, builderForValue.build());
        onChanged();
      } else {
        rulesBuilder_.setMessage(index, builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder addRules(com.google.api.UsageRule value) {
      if (rulesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureRulesIsMutable();
        rules_.add(value);
        onChanged();
      } else {
        rulesBuilder_.addMessage(value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder addRules(int index, com.google.api.UsageRule value) {
      if (rulesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureRulesIsMutable();
        rules_.add(index, value);
        onChanged();
      } else {
        rulesBuilder_.addMessage(index, value);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder addRules(com.google.api.UsageRule.Builder builderForValue) {
      if (rulesBuilder_ == null) {
        ensureRulesIsMutable();
        rules_.add(builderForValue.build());
        onChanged();
      } else {
        rulesBuilder_.addMessage(builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder addRules(int index, com.google.api.UsageRule.Builder builderForValue) {
      if (rulesBuilder_ == null) {
        ensureRulesIsMutable();
        rules_.add(index, builderForValue.build());
        onChanged();
      } else {
        rulesBuilder_.addMessage(index, builderForValue.build());
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder addAllRules(java.lang.Iterable<? extends com.google.api.UsageRule> values) {
      if (rulesBuilder_ == null) {
        ensureRulesIsMutable();
        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, rules_);
        onChanged();
      } else {
        rulesBuilder_.addAllMessages(values);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder clearRules() {
      if (rulesBuilder_ == null) {
        rules_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
      } else {
        rulesBuilder_.clear();
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public Builder removeRules(int index) {
      if (rulesBuilder_ == null) {
        ensureRulesIsMutable();
        rules_.remove(index);
        onChanged();
      } else {
        rulesBuilder_.remove(index);
      }
      return this;
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public com.google.api.UsageRule.Builder getRulesBuilder(int index) {
      return internalGetRulesFieldBuilder().getBuilder(index);
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public com.google.api.UsageRuleOrBuilder getRulesOrBuilder(int index) {
      if (rulesBuilder_ == null) {
        return rules_.get(index);
      } else {
        return rulesBuilder_.getMessageOrBuilder(index);
      }
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public java.util.List<? extends com.google.api.UsageRuleOrBuilder> getRulesOrBuilderList() {
      if (rulesBuilder_ != null) {
        return rulesBuilder_.getMessageOrBuilderList();
      } else {
        return java.util.Collections.unmodifiableList(rules_);
      }
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public com.google.api.UsageRule.Builder addRulesBuilder() {
      return internalGetRulesFieldBuilder()
          .addBuilder(com.google.api.UsageRule.getDefaultInstance());
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public com.google.api.UsageRule.Builder addRulesBuilder(int index) {
      return internalGetRulesFieldBuilder()
          .addBuilder(index, com.google.api.UsageRule.getDefaultInstance());
    }

    /**
     *
     *
     * <pre>
     * A list of usage rules that apply to individual API methods.
     *
     * **NOTE:** All service configuration rules follow "last one wins" order.
     * </pre>
     *
     * <code>repeated .google.api.UsageRule rules = 6;</code>
     */
    public java.util.List<com.google.api.UsageRule.Builder> getRulesBuilderList() {
      return internalGetRulesFieldBuilder().getBuilderList();
    }

    private com.google.protobuf.RepeatedFieldBuilder<
            com.google.api.UsageRule,
            com.google.api.UsageRule.Builder,
            com.google.api.UsageRuleOrBuilder>
        internalGetRulesFieldBuilder() {
      if (rulesBuilder_ == null) {
        rulesBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilder<
                com.google.api.UsageRule,
                com.google.api.UsageRule.Builder,
                com.google.api.UsageRuleOrBuilder>(
                rules_, ((bitField0_ & 0x00000002) != 0), getParentForChildren(), isClean());
        rules_ = null;
      }
      return rulesBuilder_;
    }

    private java.lang.Object producerNotificationChannel_ = "";

    /**
     *
     *
     * <pre>
     * The full resource name of a channel used for sending notifications to the
     * service producer.
     *
     * Google Service Management currently only supports
     * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
     * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
     * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
     * documented in https://cloud.google.com/pubsub/docs/overview.
     * </pre>
     *
     * <code>string producer_notification_channel = 7;</code>
     *
     * @return The producerNotificationChannel.
     */
    public java.lang.String getProducerNotificationChannel() {
      java.lang.Object ref = producerNotificationChannel_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        producerNotificationChannel_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * The full resource name of a channel used for sending notifications to the
     * service producer.
     *
     * Google Service Management currently only supports
     * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
     * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
     * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
     * documented in https://cloud.google.com/pubsub/docs/overview.
     * </pre>
     *
     * <code>string producer_notification_channel = 7;</code>
     *
     * @return The bytes for producerNotificationChannel.
     */
    public com.google.protobuf.ByteString getProducerNotificationChannelBytes() {
      java.lang.Object ref = producerNotificationChannel_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        producerNotificationChannel_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * The full resource name of a channel used for sending notifications to the
     * service producer.
     *
     * Google Service Management currently only supports
     * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
     * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
     * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
     * documented in https://cloud.google.com/pubsub/docs/overview.
     * </pre>
     *
     * <code>string producer_notification_channel = 7;</code>
     *
     * @param value The producerNotificationChannel to set.
     * @return This builder for chaining.
     */
    public Builder setProducerNotificationChannel(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      producerNotificationChannel_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * The full resource name of a channel used for sending notifications to the
     * service producer.
     *
     * Google Service Management currently only supports
     * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
     * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
     * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
     * documented in https://cloud.google.com/pubsub/docs/overview.
     * </pre>
     *
     * <code>string producer_notification_channel = 7;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearProducerNotificationChannel() {
      producerNotificationChannel_ = getDefaultInstance().getProducerNotificationChannel();
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * The full resource name of a channel used for sending notifications to the
     * service producer.
     *
     * Google Service Management currently only supports
     * [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) as a notification
     * channel. To use Google Cloud Pub/Sub as the channel, this must be the name
     * of a Cloud Pub/Sub topic that uses the Cloud Pub/Sub topic name format
     * documented in https://cloud.google.com/pubsub/docs/overview.
     * </pre>
     *
     * <code>string producer_notification_channel = 7;</code>
     *
     * @param value The bytes for producerNotificationChannel to set.
     * @return This builder for chaining.
     */
    public Builder setProducerNotificationChannelBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      producerNotificationChannel_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    // @@protoc_insertion_point(builder_scope:google.api.Usage)
  }

  // @@protoc_insertion_point(class_scope:google.api.Usage)
  private static final com.google.api.Usage DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.api.Usage();
  }

  public static com.google.api.Usage getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<Usage> PARSER =
      new com.google.protobuf.AbstractParser<Usage>() {
        @java.lang.Override
        public Usage parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

  public static com.google.protobuf.Parser<Usage> parser() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.Parser<Usage> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.api.Usage getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
