/*
 * Copyright 2020 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!
// source: google/cloud/dialogflow/v2/environment.proto

package com.google.cloud.dialogflow.v2;

/**
 *
 *
 * <pre>
 * You can create multiple versions of your agent and publish them to separate
 * environments.
 * When you edit an agent, you are editing the draft agent. At any point, you
 * can save the draft agent as an agent version, which is an immutable snapshot
 * of your agent.
 * When you save the draft agent, it is published to the default environment.
 * When you create agent versions, you can publish them to custom environments.
 * You can create a variety of custom environments for:
 * - testing
 * - development
 * - production
 * - etc.
 * For more information, see the [versions and environments
 * guide](https://cloud.google.com/dialogflow/docs/agents-versions).
 * </pre>
 *
 * Protobuf type {@code google.cloud.dialogflow.v2.Environment}
 */
public final class Environment extends com.google.protobuf.GeneratedMessageV3
    implements
    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2.Environment)
    EnvironmentOrBuilder {
  private static final long serialVersionUID = 0L;
  // Use Environment.newBuilder() to construct.
  private Environment(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
    super(builder);
  }

  private Environment() {
    name_ = "";
    description_ = "";
    agentVersion_ = "";
    state_ = 0;
  }

  @java.lang.Override
  @SuppressWarnings({"unused"})
  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
    return new Environment();
  }

  @java.lang.Override
  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
    return this.unknownFields;
  }

  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.cloud.dialogflow.v2.EnvironmentProto
        .internal_static_google_cloud_dialogflow_v2_Environment_descriptor;
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internalGetFieldAccessorTable() {
    return com.google.cloud.dialogflow.v2.EnvironmentProto
        .internal_static_google_cloud_dialogflow_v2_Environment_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.cloud.dialogflow.v2.Environment.class,
            com.google.cloud.dialogflow.v2.Environment.Builder.class);
  }

  /**
   *
   *
   * <pre>
   * Represents an environment state. When an environment is pointed to a new
   * agent version, the environment is temporarily set to the `LOADING` state.
   * During that time, the environment keeps on serving the previous version of
   * the agent. After the new agent version is done loading, the environment is
   * set back to the `RUNNING` state.
   * </pre>
   *
   * Protobuf enum {@code google.cloud.dialogflow.v2.Environment.State}
   */
  public enum State implements com.google.protobuf.ProtocolMessageEnum {
    /**
     *
     *
     * <pre>
     * Not specified. This value is not used.
     * </pre>
     *
     * <code>STATE_UNSPECIFIED = 0;</code>
     */
    STATE_UNSPECIFIED(0),
    /**
     *
     *
     * <pre>
     * Stopped.
     * </pre>
     *
     * <code>STOPPED = 1;</code>
     */
    STOPPED(1),
    /**
     *
     *
     * <pre>
     * Loading.
     * </pre>
     *
     * <code>LOADING = 2;</code>
     */
    LOADING(2),
    /**
     *
     *
     * <pre>
     * Running.
     * </pre>
     *
     * <code>RUNNING = 3;</code>
     */
    RUNNING(3),
    UNRECOGNIZED(-1),
    ;

    /**
     *
     *
     * <pre>
     * Not specified. This value is not used.
     * </pre>
     *
     * <code>STATE_UNSPECIFIED = 0;</code>
     */
    public static final int STATE_UNSPECIFIED_VALUE = 0;
    /**
     *
     *
     * <pre>
     * Stopped.
     * </pre>
     *
     * <code>STOPPED = 1;</code>
     */
    public static final int STOPPED_VALUE = 1;
    /**
     *
     *
     * <pre>
     * Loading.
     * </pre>
     *
     * <code>LOADING = 2;</code>
     */
    public static final int LOADING_VALUE = 2;
    /**
     *
     *
     * <pre>
     * Running.
     * </pre>
     *
     * <code>RUNNING = 3;</code>
     */
    public static final int RUNNING_VALUE = 3;

    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static State valueOf(int value) {
      return forNumber(value);
    }

    /**
     * @param value The numeric wire value of the corresponding enum entry.
     * @return The enum associated with the given numeric wire value.
     */
    public static State forNumber(int value) {
      switch (value) {
        case 0:
          return STATE_UNSPECIFIED;
        case 1:
          return STOPPED;
        case 2:
          return LOADING;
        case 3:
          return RUNNING;
        default:
          return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<State> internalGetValueMap() {
      return internalValueMap;
    }

    private static final com.google.protobuf.Internal.EnumLiteMap<State> internalValueMap =
        new com.google.protobuf.Internal.EnumLiteMap<State>() {
          public State findValueByNumber(int number) {
            return State.forNumber(number);
          }
        };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalStateException(
            "Can't get the descriptor of an unrecognized enum value.");
      }
      return getDescriptor().getValues().get(ordinal());
    }

    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
      return getDescriptor();
    }

    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
      return com.google.cloud.dialogflow.v2.Environment.getDescriptor().getEnumTypes().get(0);
    }

    private static final State[] VALUES = values();

    public static State valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private State(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.v2.Environment.State)
  }

  public static final int NAME_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private volatile java.lang.Object name_ = "";
  /**
   *
   *
   * <pre>
   * Output only. The unique identifier of this agent environment.
   * Supported formats:
   * - `projects/&lt;Project ID&gt;/agent/environments/&lt;Environment ID&gt;`
   * - `projects/&lt;Project ID&gt;/locations/&lt;Location
   *   ID&gt;/agent/environments/&lt;Environment ID&gt;`
   * The environment ID for the default environment is `-`.
   * </pre>
   *
   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
   *
   * @return The name.
   */
  @java.lang.Override
  public java.lang.String getName() {
    java.lang.Object ref = name_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      name_ = s;
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * Output only. The unique identifier of this agent environment.
   * Supported formats:
   * - `projects/&lt;Project ID&gt;/agent/environments/&lt;Environment ID&gt;`
   * - `projects/&lt;Project ID&gt;/locations/&lt;Location
   *   ID&gt;/agent/environments/&lt;Environment ID&gt;`
   * The environment ID for the default environment is `-`.
   * </pre>
   *
   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
   *
   * @return The bytes for name.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getNameBytes() {
    java.lang.Object ref = name_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      name_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int DESCRIPTION_FIELD_NUMBER = 2;

  @SuppressWarnings("serial")
  private volatile java.lang.Object description_ = "";
  /**
   *
   *
   * <pre>
   * Optional. The developer-provided description for this environment.
   * The maximum length is 500 characters. If exceeded, the request is rejected.
   * </pre>
   *
   * <code>string description = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The description.
   */
  @java.lang.Override
  public java.lang.String getDescription() {
    java.lang.Object ref = description_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      description_ = s;
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * Optional. The developer-provided description for this environment.
   * The maximum length is 500 characters. If exceeded, the request is rejected.
   * </pre>
   *
   * <code>string description = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The bytes for description.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getDescriptionBytes() {
    java.lang.Object ref = description_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      description_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int AGENT_VERSION_FIELD_NUMBER = 3;

  @SuppressWarnings("serial")
  private volatile java.lang.Object agentVersion_ = "";
  /**
   *
   *
   * <pre>
   * Optional. The agent version loaded into this environment.
   * Supported formats:
   * - `projects/&lt;Project ID&gt;/agent/versions/&lt;Version ID&gt;`
   * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
   *   ID&gt;`
   * </pre>
   *
   * <code>
   * string agent_version = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The agentVersion.
   */
  @java.lang.Override
  public java.lang.String getAgentVersion() {
    java.lang.Object ref = agentVersion_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      agentVersion_ = s;
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * Optional. The agent version loaded into this environment.
   * Supported formats:
   * - `projects/&lt;Project ID&gt;/agent/versions/&lt;Version ID&gt;`
   * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
   *   ID&gt;`
   * </pre>
   *
   * <code>
   * string agent_version = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The bytes for agentVersion.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getAgentVersionBytes() {
    java.lang.Object ref = agentVersion_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      agentVersion_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int STATE_FIELD_NUMBER = 4;
  private int state_ = 0;
  /**
   *
   *
   * <pre>
   * Output only. The state of this environment. This field is read-only, i.e.,
   * it cannot be set by create and update methods.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The enum numeric value on the wire for state.
   */
  @java.lang.Override
  public int getStateValue() {
    return state_;
  }
  /**
   *
   *
   * <pre>
   * Output only. The state of this environment. This field is read-only, i.e.,
   * it cannot be set by create and update methods.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The state.
   */
  @java.lang.Override
  public com.google.cloud.dialogflow.v2.Environment.State getState() {
    com.google.cloud.dialogflow.v2.Environment.State result =
        com.google.cloud.dialogflow.v2.Environment.State.forNumber(state_);
    return result == null ? com.google.cloud.dialogflow.v2.Environment.State.UNRECOGNIZED : result;
  }

  public static final int UPDATE_TIME_FIELD_NUMBER = 5;
  private com.google.protobuf.Timestamp updateTime_;
  /**
   *
   *
   * <pre>
   * Output only. The last update time of this environment. This field is
   * read-only, i.e., it cannot be set by create and update methods.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return Whether the updateTime field is set.
   */
  @java.lang.Override
  public boolean hasUpdateTime() {
    return updateTime_ != null;
  }
  /**
   *
   *
   * <pre>
   * Output only. The last update time of this environment. This field is
   * read-only, i.e., it cannot be set by create and update methods.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   *
   * @return The updateTime.
   */
  @java.lang.Override
  public com.google.protobuf.Timestamp getUpdateTime() {
    return updateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : updateTime_;
  }
  /**
   *
   *
   * <pre>
   * Output only. The last update time of this environment. This field is
   * read-only, i.e., it cannot be set by create and update methods.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
   * </code>
   */
  @java.lang.Override
  public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
    return updateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : updateTime_;
  }

  public static final int TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER = 7;
  private com.google.cloud.dialogflow.v2.TextToSpeechSettings textToSpeechSettings_;
  /**
   *
   *
   * <pre>
   * Optional. Text to speech settings for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the textToSpeechSettings field is set.
   */
  @java.lang.Override
  public boolean hasTextToSpeechSettings() {
    return textToSpeechSettings_ != null;
  }
  /**
   *
   *
   * <pre>
   * Optional. Text to speech settings for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The textToSpeechSettings.
   */
  @java.lang.Override
  public com.google.cloud.dialogflow.v2.TextToSpeechSettings getTextToSpeechSettings() {
    return textToSpeechSettings_ == null
        ? com.google.cloud.dialogflow.v2.TextToSpeechSettings.getDefaultInstance()
        : textToSpeechSettings_;
  }
  /**
   *
   *
   * <pre>
   * Optional. Text to speech settings for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.cloud.dialogflow.v2.TextToSpeechSettingsOrBuilder
      getTextToSpeechSettingsOrBuilder() {
    return textToSpeechSettings_ == null
        ? com.google.cloud.dialogflow.v2.TextToSpeechSettings.getDefaultInstance()
        : textToSpeechSettings_;
  }

  public static final int FULFILLMENT_FIELD_NUMBER = 8;
  private com.google.cloud.dialogflow.v2.Fulfillment fulfillment_;
  /**
   *
   *
   * <pre>
   * Optional. The fulfillment settings to use for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return Whether the fulfillment field is set.
   */
  @java.lang.Override
  public boolean hasFulfillment() {
    return fulfillment_ != null;
  }
  /**
   *
   *
   * <pre>
   * Optional. The fulfillment settings to use for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The fulfillment.
   */
  @java.lang.Override
  public com.google.cloud.dialogflow.v2.Fulfillment getFulfillment() {
    return fulfillment_ == null
        ? com.google.cloud.dialogflow.v2.Fulfillment.getDefaultInstance()
        : fulfillment_;
  }
  /**
   *
   *
   * <pre>
   * Optional. The fulfillment settings to use for this environment.
   * </pre>
   *
   * <code>
   * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   */
  @java.lang.Override
  public com.google.cloud.dialogflow.v2.FulfillmentOrBuilder getFulfillmentOrBuilder() {
    return fulfillment_ == null
        ? com.google.cloud.dialogflow.v2.Fulfillment.getDefaultInstance()
        : fulfillment_;
  }

  private byte memoizedIsInitialized = -1;

  @java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }

  @java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(agentVersion_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, agentVersion_);
    }
    if (state_ != com.google.cloud.dialogflow.v2.Environment.State.STATE_UNSPECIFIED.getNumber()) {
      output.writeEnum(4, state_);
    }
    if (updateTime_ != null) {
      output.writeMessage(5, getUpdateTime());
    }
    if (textToSpeechSettings_ != null) {
      output.writeMessage(7, getTextToSpeechSettings());
    }
    if (fulfillment_ != null) {
      output.writeMessage(8, getFulfillment());
    }
    getUnknownFields().writeTo(output);
  }

  @java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(agentVersion_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, agentVersion_);
    }
    if (state_ != com.google.cloud.dialogflow.v2.Environment.State.STATE_UNSPECIFIED.getNumber()) {
      size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, state_);
    }
    if (updateTime_ != null) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getUpdateTime());
    }
    if (textToSpeechSettings_ != null) {
      size +=
          com.google.protobuf.CodedOutputStream.computeMessageSize(7, getTextToSpeechSettings());
    }
    if (fulfillment_ != null) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getFulfillment());
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }

  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
      return true;
    }
    if (!(obj instanceof com.google.cloud.dialogflow.v2.Environment)) {
      return super.equals(obj);
    }
    com.google.cloud.dialogflow.v2.Environment other =
        (com.google.cloud.dialogflow.v2.Environment) obj;

    if (!getName().equals(other.getName())) return false;
    if (!getDescription().equals(other.getDescription())) return false;
    if (!getAgentVersion().equals(other.getAgentVersion())) return false;
    if (state_ != other.state_) return false;
    if (hasUpdateTime() != other.hasUpdateTime()) return false;
    if (hasUpdateTime()) {
      if (!getUpdateTime().equals(other.getUpdateTime())) return false;
    }
    if (hasTextToSpeechSettings() != other.hasTextToSpeechSettings()) return false;
    if (hasTextToSpeechSettings()) {
      if (!getTextToSpeechSettings().equals(other.getTextToSpeechSettings())) return false;
    }
    if (hasFulfillment() != other.hasFulfillment()) return false;
    if (hasFulfillment()) {
      if (!getFulfillment().equals(other.getFulfillment())) return false;
    }
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
  }

  @java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
    hash = (53 * hash) + getDescription().hashCode();
    hash = (37 * hash) + AGENT_VERSION_FIELD_NUMBER;
    hash = (53 * hash) + getAgentVersion().hashCode();
    hash = (37 * hash) + STATE_FIELD_NUMBER;
    hash = (53 * hash) + state_;
    if (hasUpdateTime()) {
      hash = (37 * hash) + UPDATE_TIME_FIELD_NUMBER;
      hash = (53 * hash) + getUpdateTime().hashCode();
    }
    if (hasTextToSpeechSettings()) {
      hash = (37 * hash) + TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER;
      hash = (53 * hash) + getTextToSpeechSettings().hashCode();
    }
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     * Output only. The unique identifier of this agent environment.
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location
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     * Output only. The unique identifier of this agent environment.
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location
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     * The environment ID for the default environment is `-`.
     * </pre>
     *
     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
     *
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     * @return This builder for chaining.
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     *
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     *
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     *
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     * Optional. The developer-provided description for this environment.
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     *
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     * Supported formats:
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
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    /**
     *
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     * <pre>
     * Optional. The agent version loaded into this environment.
     * Supported formats:
     * - `projects/&lt;Project ID&gt;/agent/versions/&lt;Version ID&gt;`
     * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
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     * Optional. The agent version loaded into this environment.
     * Supported formats:
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
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     *
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     * @return This builder for chaining.
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     * Supported formats:
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     * - `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agent/versions/&lt;Version
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     *
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      }
      checkByteStringIsUtf8(value);
      agentVersion_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    private int state_ = 0;
    /**
     *
     *
     * <pre>
     * Output only. The state of this environment. This field is read-only, i.e.,
     * it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The enum numeric value on the wire for state.
     */
    @java.lang.Override
    public int getStateValue() {
      return state_;
    }
    /**
     *
     *
     * <pre>
     * Output only. The state of this environment. This field is read-only, i.e.,
     * it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @param value The enum numeric value on the wire for state to set.
     * @return This builder for chaining.
     */
    public Builder setStateValue(int value) {
      state_ = value;
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The state of this environment. This field is read-only, i.e.,
     * it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The state.
     */
    @java.lang.Override
    public com.google.cloud.dialogflow.v2.Environment.State getState() {
      com.google.cloud.dialogflow.v2.Environment.State result =
          com.google.cloud.dialogflow.v2.Environment.State.forNumber(state_);
      return result == null
          ? com.google.cloud.dialogflow.v2.Environment.State.UNRECOGNIZED
          : result;
    }
    /**
     *
     *
     * <pre>
     * Output only. The state of this environment. This field is read-only, i.e.,
     * it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @param value The state to set.
     * @return This builder for chaining.
     */
    public Builder setState(com.google.cloud.dialogflow.v2.Environment.State value) {
      if (value == null) {
        throw new NullPointerException();
      }
      bitField0_ |= 0x00000008;
      state_ = value.getNumber();
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The state of this environment. This field is read-only, i.e.,
     * it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Environment.State state = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearState() {
      bitField0_ = (bitField0_ & ~0x00000008);
      state_ = 0;
      onChanged();
      return this;
    }

    private com.google.protobuf.Timestamp updateTime_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        updateTimeBuilder_;
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return Whether the updateTime field is set.
     */
    public boolean hasUpdateTime() {
      return ((bitField0_ & 0x00000010) != 0);
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     *
     * @return The updateTime.
     */
    public com.google.protobuf.Timestamp getUpdateTime() {
      if (updateTimeBuilder_ == null) {
        return updateTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : updateTime_;
      } else {
        return updateTimeBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setUpdateTime(com.google.protobuf.Timestamp value) {
      if (updateTimeBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        updateTime_ = value;
      } else {
        updateTimeBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder setUpdateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
      if (updateTimeBuilder_ == null) {
        updateTime_ = builderForValue.build();
      } else {
        updateTimeBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder mergeUpdateTime(com.google.protobuf.Timestamp value) {
      if (updateTimeBuilder_ == null) {
        if (((bitField0_ & 0x00000010) != 0)
            && updateTime_ != null
            && updateTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
          getUpdateTimeBuilder().mergeFrom(value);
        } else {
          updateTime_ = value;
        }
      } else {
        updateTimeBuilder_.mergeFrom(value);
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public Builder clearUpdateTime() {
      bitField0_ = (bitField0_ & ~0x00000010);
      updateTime_ = null;
      if (updateTimeBuilder_ != null) {
        updateTimeBuilder_.dispose();
        updateTimeBuilder_ = null;
      }
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.protobuf.Timestamp.Builder getUpdateTimeBuilder() {
      bitField0_ |= 0x00000010;
      onChanged();
      return getUpdateTimeFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
      if (updateTimeBuilder_ != null) {
        return updateTimeBuilder_.getMessageOrBuilder();
      } else {
        return updateTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : updateTime_;
      }
    }
    /**
     *
     *
     * <pre>
     * Output only. The last update time of this environment. This field is
     * read-only, i.e., it cannot be set by create and update methods.
     * </pre>
     *
     * <code>
     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getUpdateTimeFieldBuilder() {
      if (updateTimeBuilder_ == null) {
        updateTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                getUpdateTime(), getParentForChildren(), isClean());
        updateTime_ = null;
      }
      return updateTimeBuilder_;
    }

    private com.google.cloud.dialogflow.v2.TextToSpeechSettings textToSpeechSettings_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dialogflow.v2.TextToSpeechSettings,
            com.google.cloud.dialogflow.v2.TextToSpeechSettings.Builder,
            com.google.cloud.dialogflow.v2.TextToSpeechSettingsOrBuilder>
        textToSpeechSettingsBuilder_;
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the textToSpeechSettings field is set.
     */
    public boolean hasTextToSpeechSettings() {
      return ((bitField0_ & 0x00000020) != 0);
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The textToSpeechSettings.
     */
    public com.google.cloud.dialogflow.v2.TextToSpeechSettings getTextToSpeechSettings() {
      if (textToSpeechSettingsBuilder_ == null) {
        return textToSpeechSettings_ == null
            ? com.google.cloud.dialogflow.v2.TextToSpeechSettings.getDefaultInstance()
            : textToSpeechSettings_;
      } else {
        return textToSpeechSettingsBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setTextToSpeechSettings(
        com.google.cloud.dialogflow.v2.TextToSpeechSettings value) {
      if (textToSpeechSettingsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        textToSpeechSettings_ = value;
      } else {
        textToSpeechSettingsBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setTextToSpeechSettings(
        com.google.cloud.dialogflow.v2.TextToSpeechSettings.Builder builderForValue) {
      if (textToSpeechSettingsBuilder_ == null) {
        textToSpeechSettings_ = builderForValue.build();
      } else {
        textToSpeechSettingsBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeTextToSpeechSettings(
        com.google.cloud.dialogflow.v2.TextToSpeechSettings value) {
      if (textToSpeechSettingsBuilder_ == null) {
        if (((bitField0_ & 0x00000020) != 0)
            && textToSpeechSettings_ != null
            && textToSpeechSettings_
                != com.google.cloud.dialogflow.v2.TextToSpeechSettings.getDefaultInstance()) {
          getTextToSpeechSettingsBuilder().mergeFrom(value);
        } else {
          textToSpeechSettings_ = value;
        }
      } else {
        textToSpeechSettingsBuilder_.mergeFrom(value);
      }
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearTextToSpeechSettings() {
      bitField0_ = (bitField0_ & ~0x00000020);
      textToSpeechSettings_ = null;
      if (textToSpeechSettingsBuilder_ != null) {
        textToSpeechSettingsBuilder_.dispose();
        textToSpeechSettingsBuilder_ = null;
      }
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.cloud.dialogflow.v2.TextToSpeechSettings.Builder
        getTextToSpeechSettingsBuilder() {
      bitField0_ |= 0x00000020;
      onChanged();
      return getTextToSpeechSettingsFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.cloud.dialogflow.v2.TextToSpeechSettingsOrBuilder
        getTextToSpeechSettingsOrBuilder() {
      if (textToSpeechSettingsBuilder_ != null) {
        return textToSpeechSettingsBuilder_.getMessageOrBuilder();
      } else {
        return textToSpeechSettings_ == null
            ? com.google.cloud.dialogflow.v2.TextToSpeechSettings.getDefaultInstance()
            : textToSpeechSettings_;
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Text to speech settings for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dialogflow.v2.TextToSpeechSettings,
            com.google.cloud.dialogflow.v2.TextToSpeechSettings.Builder,
            com.google.cloud.dialogflow.v2.TextToSpeechSettingsOrBuilder>
        getTextToSpeechSettingsFieldBuilder() {
      if (textToSpeechSettingsBuilder_ == null) {
        textToSpeechSettingsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.dialogflow.v2.TextToSpeechSettings,
                com.google.cloud.dialogflow.v2.TextToSpeechSettings.Builder,
                com.google.cloud.dialogflow.v2.TextToSpeechSettingsOrBuilder>(
                getTextToSpeechSettings(), getParentForChildren(), isClean());
        textToSpeechSettings_ = null;
      }
      return textToSpeechSettingsBuilder_;
    }

    private com.google.cloud.dialogflow.v2.Fulfillment fulfillment_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dialogflow.v2.Fulfillment,
            com.google.cloud.dialogflow.v2.Fulfillment.Builder,
            com.google.cloud.dialogflow.v2.FulfillmentOrBuilder>
        fulfillmentBuilder_;
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return Whether the fulfillment field is set.
     */
    public boolean hasFulfillment() {
      return ((bitField0_ & 0x00000040) != 0);
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The fulfillment.
     */
    public com.google.cloud.dialogflow.v2.Fulfillment getFulfillment() {
      if (fulfillmentBuilder_ == null) {
        return fulfillment_ == null
            ? com.google.cloud.dialogflow.v2.Fulfillment.getDefaultInstance()
            : fulfillment_;
      } else {
        return fulfillmentBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setFulfillment(com.google.cloud.dialogflow.v2.Fulfillment value) {
      if (fulfillmentBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        fulfillment_ = value;
      } else {
        fulfillmentBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder setFulfillment(
        com.google.cloud.dialogflow.v2.Fulfillment.Builder builderForValue) {
      if (fulfillmentBuilder_ == null) {
        fulfillment_ = builderForValue.build();
      } else {
        fulfillmentBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder mergeFulfillment(com.google.cloud.dialogflow.v2.Fulfillment value) {
      if (fulfillmentBuilder_ == null) {
        if (((bitField0_ & 0x00000040) != 0)
            && fulfillment_ != null
            && fulfillment_ != com.google.cloud.dialogflow.v2.Fulfillment.getDefaultInstance()) {
          getFulfillmentBuilder().mergeFrom(value);
        } else {
          fulfillment_ = value;
        }
      } else {
        fulfillmentBuilder_.mergeFrom(value);
      }
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public Builder clearFulfillment() {
      bitField0_ = (bitField0_ & ~0x00000040);
      fulfillment_ = null;
      if (fulfillmentBuilder_ != null) {
        fulfillmentBuilder_.dispose();
        fulfillmentBuilder_ = null;
      }
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.cloud.dialogflow.v2.Fulfillment.Builder getFulfillmentBuilder() {
      bitField0_ |= 0x00000040;
      onChanged();
      return getFulfillmentFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    public com.google.cloud.dialogflow.v2.FulfillmentOrBuilder getFulfillmentOrBuilder() {
      if (fulfillmentBuilder_ != null) {
        return fulfillmentBuilder_.getMessageOrBuilder();
      } else {
        return fulfillment_ == null
            ? com.google.cloud.dialogflow.v2.Fulfillment.getDefaultInstance()
            : fulfillment_;
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. The fulfillment settings to use for this environment.
     * </pre>
     *
     * <code>
     * .google.cloud.dialogflow.v2.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dialogflow.v2.Fulfillment,
            com.google.cloud.dialogflow.v2.Fulfillment.Builder,
            com.google.cloud.dialogflow.v2.FulfillmentOrBuilder>
        getFulfillmentFieldBuilder() {
      if (fulfillmentBuilder_ == null) {
        fulfillmentBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.dialogflow.v2.Fulfillment,
                com.google.cloud.dialogflow.v2.Fulfillment.Builder,
                com.google.cloud.dialogflow.v2.FulfillmentOrBuilder>(
                getFulfillment(), getParentForChildren(), isClean());
        fulfillment_ = null;
      }
      return fulfillmentBuilder_;
    }

    @java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }

    @java.lang.Override
    public final Builder mergeUnknownFields(
        final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.mergeUnknownFields(unknownFields);
    }

    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2.Environment)
  }

  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2.Environment)
  private static final com.google.cloud.dialogflow.v2.Environment DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2.Environment();
  }

  public static com.google.cloud.dialogflow.v2.Environment getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<Environment> PARSER =
      new com.google.protobuf.AbstractParser<Environment>() {
        @java.lang.Override
        public Environment 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<Environment> parser() {
    return PARSER;
  }

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

  @java.lang.Override
  public com.google.cloud.dialogflow.v2.Environment getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}