/*
 * 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/discoveryengine/v1beta/recommendation_service.proto

package com.google.cloud.discoveryengine.v1beta;

/**
 *
 *
 * <pre>
 * Response message for Recommend method.
 * </pre>
 *
 * Protobuf type {@code google.cloud.discoveryengine.v1beta.RecommendResponse}
 */
public final class RecommendResponse extends com.google.protobuf.GeneratedMessageV3
    implements
    // @@protoc_insertion_point(message_implements:google.cloud.discoveryengine.v1beta.RecommendResponse)
    RecommendResponseOrBuilder {
  private static final long serialVersionUID = 0L;
  // Use RecommendResponse.newBuilder() to construct.
  private RecommendResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
    super(builder);
  }

  private RecommendResponse() {
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    attributionToken_ = "";
    missingIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
  }

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

  @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.discoveryengine.v1beta.RecommendationServiceProto
        .internal_static_google_cloud_discoveryengine_v1beta_RecommendResponse_descriptor;
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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        .ensureFieldAccessorsInitialized(
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.class,
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.Builder.class);
  }

  public interface RecommendationResultOrBuilder
      extends
      // @@protoc_insertion_point(interface_extends:google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult)
      com.google.protobuf.MessageOrBuilder {

    /**
     *
     *
     * <pre>
     * Resource ID of the recommended Document.
     * </pre>
     *
     * <code>string id = 1;</code>
     *
     * @return The id.
     */
    java.lang.String getId();
    /**
     *
     *
     * <pre>
     * Resource ID of the recommended Document.
     * </pre>
     *
     * <code>string id = 1;</code>
     *
     * @return The bytes for id.
     */
    com.google.protobuf.ByteString getIdBytes();

    /**
     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     *
     * @return Whether the document field is set.
     */
    boolean hasDocument();
    /**
     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     *
     * @return The document.
     */
    com.google.cloud.discoveryengine.v1beta.Document getDocument();
    /**
     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     */
    com.google.cloud.discoveryengine.v1beta.DocumentOrBuilder getDocumentOrBuilder();

    /**
     *
     *
     * <pre>
     * Additional Document metadata / annotations.
     * Possible values:
     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
     */
    int getMetadataCount();
    /**
     *
     *
     * <pre>
     * Additional Document metadata / annotations.
     * Possible values:
     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
     */
    boolean containsMetadata(java.lang.String key);
    /** Use {@link #getMetadataMap()} instead. */
    @java.lang.Deprecated
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    /**
     *
     *
     * <pre>
     * Additional Document metadata / annotations.
     * Possible values:
     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
     */
    java.util.Map<java.lang.String, com.google.protobuf.Value> getMetadataMap();
    /**
     *
     *
     * <pre>
     * Additional Document metadata / annotations.
     * Possible values:
     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
     */
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    com.google.protobuf.Value getMetadataOrDefault(
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    /**
     *
     *
     * <pre>
     * Additional Document metadata / annotations.
     * Possible values:
     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
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     */
    com.google.protobuf.Value getMetadataOrThrow(java.lang.String key);
  }
  /**
   *
   *
   * <pre>
   * RecommendationResult represents a generic recommendation result with
   * associated metadata.
   * </pre>
   *
   * Protobuf type {@code
   * google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult}
   */
  public static final class RecommendationResult extends com.google.protobuf.GeneratedMessageV3
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      // @@protoc_insertion_point(message_implements:google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult)
      RecommendationResultOrBuilder {
    private static final long serialVersionUID = 0L;
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    }

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     *
     *
     * <pre>
     * Resource ID of the recommended Document.
     * </pre>
     *
     * <code>string id = 1;</code>
     *
     * @return The id.
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     *
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     * <pre>
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     * </pre>
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     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     *
     * @return Whether the document field is set.
     */
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    /**
     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     *
     * @return The document.
     */
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    }
    /**
     *
     *
     * <pre>
     * Set if `returnDocument` is set to true in
     * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
     *
     * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
     */
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     *
     * <pre>
     * Additional Document metadata / annotations.
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     * * `score`: Recommendation score in double value. Is set if
     *   `returnScore` is set to true in
     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
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     * * `score`: Recommendation score in double value. Is set if
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     *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
     * </pre>
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     * <pre>
     * RecommendationResult represents a generic recommendation result with
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     * </pre>
     *
     * Protobuf type {@code
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       *
       *
       * <pre>
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       *
       * <code>string id = 1;</code>
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       * @param value The id to set.
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       *
       * <pre>
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       *
       * <code>string id = 1;</code>
       *
       * @return This builder for chaining.
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       * <pre>
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       * <code>string id = 1;</code>
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              com.google.cloud.discoveryengine.v1beta.DocumentOrBuilder>
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      /**
       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
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       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
       *
       * @return The document.
       */
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      /**
       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
       */
      public Builder setDocument(com.google.cloud.discoveryengine.v1beta.Document value) {
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            throw new NullPointerException();
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          document_ = value;
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        return this;
      }
      /**
       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
       */
      public Builder setDocument(
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        if (documentBuilder_ == null) {
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        } else {
          documentBuilder_.setMessage(builderForValue.build());
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      /**
       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
       */
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        if (documentBuilder_ == null) {
          if (((bitField0_ & 0x00000002) != 0)
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              && document_
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            document_ = value;
          }
        } else {
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       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
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      /**
       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
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       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
       * [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
       * <code>.google.cloud.discoveryengine.v1beta.Document document = 2;</code>
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       *
       *
       * <pre>
       * Set if `returnDocument` is set to true in
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       *
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      /**
       *
       *
       * <pre>
       * Additional Document metadata / annotations.
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       *   `returnScore` is set to true in
       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
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      @java.lang.Override
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       *
       *
       * <pre>
       * Additional Document metadata / annotations.
       * Possible values:
       * * `score`: Recommendation score in double value. Is set if
       *   `returnScore` is set to true in
       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
       * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
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       *
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       *
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       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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      /**
       *
       *
       * <pre>
       * Additional Document metadata / annotations.
       * Possible values:
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       *   `returnScore` is set to true in
       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
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       *
       *
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       * Additional Document metadata / annotations.
       * Possible values:
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       *   `returnScore` is set to true in
       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
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        if (key == null) {
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        if (value == null) {
          throw new NullPointerException("map value");
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        internalGetMutableMetadata().getMutableMap().put(key, value);
        bitField0_ |= 0x00000004;
        return this;
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      /**
       *
       *
       * <pre>
       * Additional Document metadata / annotations.
       * Possible values:
       * * `score`: Recommendation score in double value. Is set if
       *   `returnScore` is set to true in
       *   [RecommendRequest.params][google.cloud.discoveryengine.v1beta.RecommendRequest.params].
       * </pre>
       *
       * <code>map&lt;string, .google.protobuf.Value&gt; metadata = 3;</code>
       */
      public Builder putAllMetadata(
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      @java.lang.Override
      public final Builder mergeUnknownFields(
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        return super.mergeUnknownFields(unknownFields);
      }

      // @@protoc_insertion_point(builder_scope:google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult)
    }

    // @@protoc_insertion_point(class_scope:google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult)
    private static final com.google.cloud.discoveryengine.v1beta.RecommendResponse
            .RecommendationResult
        DEFAULT_INSTANCE;

    static {
      DEFAULT_INSTANCE =
          new com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult();
    }

    public static com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
        getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

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

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

    @java.lang.Override
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
        getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }
  }

  public static final int RESULTS_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private java.util.List<
          com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult>
      results_;
  /**
   *
   *
   * <pre>
   * A list of recommended Documents. The order represents the ranking (from the
   * most relevant Document to the least).
   * </pre>
   *
   * <code>
   * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
   * </code>
   */
  @java.lang.Override
  public java.util.List<
          com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult>
      getResultsList() {
    return results_;
  }
  /**
   *
   *
   * <pre>
   * A list of recommended Documents. The order represents the ranking (from the
   * most relevant Document to the least).
   * </pre>
   *
   * <code>
   * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
   * </code>
   */
  @java.lang.Override
  public java.util.List<
          ? extends
              com.google.cloud.discoveryengine.v1beta.RecommendResponse
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    return results_;
  }
  /**
   *
   *
   * <pre>
   * A list of recommended Documents. The order represents the ranking (from the
   * most relevant Document to the least).
   * </pre>
   *
   * <code>
   * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
   * </code>
   */
  @java.lang.Override
  public int getResultsCount() {
    return results_.size();
  }
  /**
   *
   *
   * <pre>
   * A list of recommended Documents. The order represents the ranking (from the
   * most relevant Document to the least).
   * </pre>
   *
   * <code>
   * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
   * </code>
   */
  @java.lang.Override
  public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult getResults(
      int index) {
    return results_.get(index);
  }
  /**
   *
   *
   * <pre>
   * A list of recommended Documents. The order represents the ranking (from the
   * most relevant Document to the least).
   * </pre>
   *
   * <code>
   * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
   * </code>
   */
  @java.lang.Override
  public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResultOrBuilder
      getResultsOrBuilder(int index) {
    return results_.get(index);
  }

  public static final int ATTRIBUTION_TOKEN_FIELD_NUMBER = 2;

  @SuppressWarnings("serial")
  private volatile java.lang.Object attributionToken_ = "";
  /**
   *
   *
   * <pre>
   * A unique attribution token. This should be included in the
   * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
   * from this recommendation, which enables accurate attribution of
   * recommendation model performance.
   * </pre>
   *
   * <code>string attribution_token = 2;</code>
   *
   * @return The attributionToken.
   */
  @java.lang.Override
  public java.lang.String getAttributionToken() {
    java.lang.Object ref = attributionToken_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
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      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      attributionToken_ = s;
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * A unique attribution token. This should be included in the
   * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
   * from this recommendation, which enables accurate attribution of
   * recommendation model performance.
   * </pre>
   *
   * <code>string attribution_token = 2;</code>
   *
   * @return The bytes for attributionToken.
   */
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  public com.google.protobuf.ByteString getAttributionTokenBytes() {
    java.lang.Object ref = attributionToken_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      attributionToken_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int MISSING_IDS_FIELD_NUMBER = 3;

  @SuppressWarnings("serial")
  private com.google.protobuf.LazyStringList missingIds_;
  /**
   *
   *
   * <pre>
   * IDs of documents in the request that were missing from the default Branch
   * associated with the requested ServingConfig.
   * </pre>
   *
   * <code>repeated string missing_ids = 3;</code>
   *
   * @return A list containing the missingIds.
   */
  public com.google.protobuf.ProtocolStringList getMissingIdsList() {
    return missingIds_;
  }
  /**
   *
   *
   * <pre>
   * IDs of documents in the request that were missing from the default Branch
   * associated with the requested ServingConfig.
   * </pre>
   *
   * <code>repeated string missing_ids = 3;</code>
   *
   * @return The count of missingIds.
   */
  public int getMissingIdsCount() {
    return missingIds_.size();
  }
  /**
   *
   *
   * <pre>
   * IDs of documents in the request that were missing from the default Branch
   * associated with the requested ServingConfig.
   * </pre>
   *
   * <code>repeated string missing_ids = 3;</code>
   *
   * @param index The index of the element to return.
   * @return The missingIds at the given index.
   */
  public java.lang.String getMissingIds(int index) {
    return missingIds_.get(index);
  }
  /**
   *
   *
   * <pre>
   * IDs of documents in the request that were missing from the default Branch
   * associated with the requested ServingConfig.
   * </pre>
   *
   * <code>repeated string missing_ids = 3;</code>
   *
   * @param index The index of the value to return.
   * @return The bytes of the missingIds at the given index.
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  private boolean validateOnly_ = false;
  /**
   *
   *
   * <pre>
   * True if
   * [RecommendRequest.validate_only][google.cloud.discoveryengine.v1beta.RecommendRequest.validate_only]
   * was set.
   * </pre>
   *
   * <code>bool validate_only = 4;</code>
   *
   * @return The validateOnly.
   */
  @java.lang.Override
  public boolean getValidateOnly() {
    return validateOnly_;
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    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

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  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    for (int i = 0; i < results_.size(); i++) {
      output.writeMessage(1, results_.get(i));
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(attributionToken_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, attributionToken_);
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    for (int i = 0; i < missingIds_.size(); i++) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, missingIds_.getRaw(i));
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    if (validateOnly_ != false) {
      output.writeBool(4, validateOnly_);
    }
    getUnknownFields().writeTo(output);
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  @java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    for (int i = 0; i < results_.size(); i++) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, results_.get(i));
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    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(attributionToken_)) {
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      int dataSize = 0;
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        dataSize += computeStringSizeNoTag(missingIds_.getRaw(i));
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      size += dataSize;
      size += 1 * getMissingIdsList().size();
    }
    if (validateOnly_ != false) {
      size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, validateOnly_);
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    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.discoveryengine.v1beta.RecommendResponse)) {
      return super.equals(obj);
    }
    com.google.cloud.discoveryengine.v1beta.RecommendResponse other =
        (com.google.cloud.discoveryengine.v1beta.RecommendResponse) obj;

    if (!getResultsList().equals(other.getResultsList())) return false;
    if (!getAttributionToken().equals(other.getAttributionToken())) return false;
    if (!getMissingIdsList().equals(other.getMissingIdsList())) return false;
    if (getValidateOnly() != other.getValidateOnly()) 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();
    if (getResultsCount() > 0) {
      hash = (37 * hash) + RESULTS_FIELD_NUMBER;
      hash = (53 * hash) + getResultsList().hashCode();
    }
    hash = (37 * hash) + ATTRIBUTION_TOKEN_FIELD_NUMBER;
    hash = (53 * hash) + getAttributionToken().hashCode();
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      hash = (53 * hash) + getMissingIdsList().hashCode();
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    hash = (37 * hash) + VALIDATE_ONLY_FIELD_NUMBER;
    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getValidateOnly());
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
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  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      com.google.protobuf.ByteString data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      com.google.protobuf.ByteString data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(byte[] data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      java.io.InputStream input) throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
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  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseDelimitedFrom(
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    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
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  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseDelimitedFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
        PARSER, input, extensionRegistry);
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  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse parseFrom(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }

  @java.lang.Override
  public Builder newBuilderForType() {
    return newBuilder();
  }

  public static Builder newBuilder() {
    return DEFAULT_INSTANCE.toBuilder();
  }

  public static Builder newBuilder(
      com.google.cloud.discoveryengine.v1beta.RecommendResponse prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }

  @java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }

  @java.lang.Override
  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
    Builder builder = new Builder(parent);
    return builder;
  }
  /**
   *
   *
   * <pre>
   * Response message for Recommend method.
   * </pre>
   *
   * Protobuf type {@code google.cloud.discoveryengine.v1beta.RecommendResponse}
   */
  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
      implements
      // @@protoc_insertion_point(builder_implements:google.cloud.discoveryengine.v1beta.RecommendResponse)
      com.google.cloud.discoveryengine.v1beta.RecommendResponseOrBuilder {
    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      return com.google.cloud.discoveryengine.v1beta.RecommendationServiceProto
          .internal_static_google_cloud_discoveryengine_v1beta_RecommendResponse_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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    // Construct using com.google.cloud.discoveryengine.v1beta.RecommendResponse.newBuilder()
    private Builder() {}

    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      super(parent);
    }

    @java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      if (resultsBuilder_ == null) {
        results_ = java.util.Collections.emptyList();
      } else {
        results_ = null;
        resultsBuilder_.clear();
      }
      bitField0_ = (bitField0_ & ~0x00000001);
      attributionToken_ = "";
      missingIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
      bitField0_ = (bitField0_ & ~0x00000004);
      validateOnly_ = false;
      return this;
    }

    @java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
      return com.google.cloud.discoveryengine.v1beta.RecommendationServiceProto
          .internal_static_google_cloud_discoveryengine_v1beta_RecommendResponse_descriptor;
    }

    @java.lang.Override
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse getDefaultInstanceForType() {
      return com.google.cloud.discoveryengine.v1beta.RecommendResponse.getDefaultInstance();
    }

    @java.lang.Override
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse build() {
      com.google.cloud.discoveryengine.v1beta.RecommendResponse result = buildPartial();
      if (!result.isInitialized()) {
        throw newUninitializedMessageException(result);
      }
      return result;
    }

    @java.lang.Override
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse buildPartial() {
      com.google.cloud.discoveryengine.v1beta.RecommendResponse result =
          new com.google.cloud.discoveryengine.v1beta.RecommendResponse(this);
      buildPartialRepeatedFields(result);
      if (bitField0_ != 0) {
        buildPartial0(result);
      }
      onBuilt();
      return result;
    }

    private void buildPartialRepeatedFields(
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      if (resultsBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)) {
          results_ = java.util.Collections.unmodifiableList(results_);
          bitField0_ = (bitField0_ & ~0x00000001);
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        result.results_ = results_;
      } else {
        result.results_ = resultsBuilder_.build();
      }
      if (((bitField0_ & 0x00000004) != 0)) {
        missingIds_ = missingIds_.getUnmodifiableView();
        bitField0_ = (bitField0_ & ~0x00000004);
      }
      result.missingIds_ = missingIds_;
    }

    private void buildPartial0(com.google.cloud.discoveryengine.v1beta.RecommendResponse result) {
      int from_bitField0_ = bitField0_;
      if (((from_bitField0_ & 0x00000002) != 0)) {
        result.attributionToken_ = attributionToken_;
      }
      if (((from_bitField0_ & 0x00000008) != 0)) {
        result.validateOnly_ = validateOnly_;
      }
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    @java.lang.Override
    public Builder clone() {
      return super.clone();
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    @java.lang.Override
    public Builder setField(
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      return super.setField(field, value);
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    @java.lang.Override
    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
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    @java.lang.Override
    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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    @java.lang.Override
    public Builder setRepeatedField(
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      return super.setRepeatedField(field, index, value);
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    @java.lang.Override
    public Builder addRepeatedField(
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      return super.addRepeatedField(field, value);
    }

    @java.lang.Override
    public Builder mergeFrom(com.google.protobuf.Message other) {
      if (other instanceof com.google.cloud.discoveryengine.v1beta.RecommendResponse) {
        return mergeFrom((com.google.cloud.discoveryengine.v1beta.RecommendResponse) other);
      } else {
        super.mergeFrom(other);
        return this;
      }
    }

    public Builder mergeFrom(com.google.cloud.discoveryengine.v1beta.RecommendResponse other) {
      if (other == com.google.cloud.discoveryengine.v1beta.RecommendResponse.getDefaultInstance())
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      if (resultsBuilder_ == null) {
        if (!other.results_.isEmpty()) {
          if (results_.isEmpty()) {
            results_ = other.results_;
            bitField0_ = (bitField0_ & ~0x00000001);
          } else {
            ensureResultsIsMutable();
            results_.addAll(other.results_);
          }
          onChanged();
        }
      } else {
        if (!other.results_.isEmpty()) {
          if (resultsBuilder_.isEmpty()) {
            resultsBuilder_.dispose();
            resultsBuilder_ = null;
            results_ = other.results_;
            bitField0_ = (bitField0_ & ~0x00000001);
            resultsBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getResultsFieldBuilder()
                    : null;
          } else {
            resultsBuilder_.addAllMessages(other.results_);
          }
        }
      }
      if (!other.getAttributionToken().isEmpty()) {
        attributionToken_ = other.attributionToken_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      if (!other.missingIds_.isEmpty()) {
        if (missingIds_.isEmpty()) {
          missingIds_ = other.missingIds_;
          bitField0_ = (bitField0_ & ~0x00000004);
        } else {
          ensureMissingIdsIsMutable();
          missingIds_.addAll(other.missingIds_);
        }
        onChanged();
      }
      if (other.getValidateOnly() != false) {
        setValidateOnly(other.getValidateOnly());
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }

    @java.lang.Override
    public final boolean isInitialized() {
      return true;
    }

    @java.lang.Override
    public Builder mergeFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      if (extensionRegistry == null) {
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        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            case 10:
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                com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult m =
                    input.readMessage(
                        com.google.cloud.discoveryengine.v1beta.RecommendResponse
                            .RecommendationResult.parser(),
                        extensionRegistry);
                if (resultsBuilder_ == null) {
                  ensureResultsIsMutable();
                  results_.add(m);
                } else {
                  resultsBuilder_.addMessage(m);
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            case 26:
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                break;
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        } // while (!done)
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.unwrapIOException();
      } finally {
        onChanged();
      } // finally
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    }

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    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public java.util.List<
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult>
        getResultsList() {
      if (resultsBuilder_ == null) {
        return java.util.Collections.unmodifiableList(results_);
      } else {
        return resultsBuilder_.getMessageList();
      }
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public int getResultsCount() {
      if (resultsBuilder_ == null) {
        return results_.size();
      } else {
        return resultsBuilder_.getCount();
      }
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
        getResults(int index) {
      if (resultsBuilder_ == null) {
        return results_.get(index);
      } else {
        return resultsBuilder_.getMessage(index);
      }
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder setResults(
        int index,
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult value) {
      if (resultsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureResultsIsMutable();
        results_.set(index, value);
        onChanged();
      } else {
        resultsBuilder_.setMessage(index, value);
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder setResults(
        int index,
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
            builderForValue) {
      if (resultsBuilder_ == null) {
        ensureResultsIsMutable();
        results_.set(index, builderForValue.build());
        onChanged();
      } else {
        resultsBuilder_.setMessage(index, builderForValue.build());
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder addResults(
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult value) {
      if (resultsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureResultsIsMutable();
        results_.add(value);
        onChanged();
      } else {
        resultsBuilder_.addMessage(value);
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder addResults(
        int index,
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult value) {
      if (resultsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureResultsIsMutable();
        results_.add(index, value);
        onChanged();
      } else {
        resultsBuilder_.addMessage(index, value);
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder addResults(
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
            builderForValue) {
      if (resultsBuilder_ == null) {
        ensureResultsIsMutable();
        results_.add(builderForValue.build());
        onChanged();
      } else {
        resultsBuilder_.addMessage(builderForValue.build());
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder addResults(
        int index,
        com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
            builderForValue) {
      if (resultsBuilder_ == null) {
        ensureResultsIsMutable();
        results_.add(index, builderForValue.build());
        onChanged();
      } else {
        resultsBuilder_.addMessage(index, builderForValue.build());
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder addAllResults(
        java.lang.Iterable<
                ? extends
                    com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult>
            values) {
      if (resultsBuilder_ == null) {
        ensureResultsIsMutable();
        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, results_);
        onChanged();
      } else {
        resultsBuilder_.addAllMessages(values);
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder clearResults() {
      if (resultsBuilder_ == null) {
        results_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00000001);
        onChanged();
      } else {
        resultsBuilder_.clear();
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public Builder removeResults(int index) {
      if (resultsBuilder_ == null) {
        ensureResultsIsMutable();
        results_.remove(index);
        onChanged();
      } else {
        resultsBuilder_.remove(index);
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
        getResultsBuilder(int index) {
      return getResultsFieldBuilder().getBuilder(index);
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResultOrBuilder
        getResultsOrBuilder(int index) {
      if (resultsBuilder_ == null) {
        return results_.get(index);
      } else {
        return resultsBuilder_.getMessageOrBuilder(index);
      }
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public java.util.List<
            ? extends
                com.google.cloud.discoveryengine.v1beta.RecommendResponse
                    .RecommendationResultOrBuilder>
        getResultsOrBuilderList() {
      if (resultsBuilder_ != null) {
        return resultsBuilder_.getMessageOrBuilderList();
      } else {
        return java.util.Collections.unmodifiableList(results_);
      }
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
        addResultsBuilder() {
      return getResultsFieldBuilder()
          .addBuilder(
              com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
                  .getDefaultInstance());
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder
        addResultsBuilder(int index) {
      return getResultsFieldBuilder()
          .addBuilder(
              index,
              com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
                  .getDefaultInstance());
    }
    /**
     *
     *
     * <pre>
     * A list of recommended Documents. The order represents the ranking (from the
     * most relevant Document to the least).
     * </pre>
     *
     * <code>
     * repeated .google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult results = 1;
     * </code>
     */
    public java.util.List<
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder>
        getResultsBuilderList() {
      return getResultsFieldBuilder().getBuilderList();
    }

    private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult,
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult.Builder,
            com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResultOrBuilder>
        getResultsFieldBuilder() {
      if (resultsBuilder_ == null) {
        resultsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult,
                com.google.cloud.discoveryengine.v1beta.RecommendResponse.RecommendationResult
                    .Builder,
                com.google.cloud.discoveryengine.v1beta.RecommendResponse
                    .RecommendationResultOrBuilder>(
                results_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
        results_ = null;
      }
      return resultsBuilder_;
    }

    private java.lang.Object attributionToken_ = "";
    /**
     *
     *
     * <pre>
     * A unique attribution token. This should be included in the
     * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
     * from this recommendation, which enables accurate attribution of
     * recommendation model performance.
     * </pre>
     *
     * <code>string attribution_token = 2;</code>
     *
     * @return The attributionToken.
     */
    public java.lang.String getAttributionToken() {
      java.lang.Object ref = attributionToken_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        attributionToken_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * A unique attribution token. This should be included in the
     * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
     * from this recommendation, which enables accurate attribution of
     * recommendation model performance.
     * </pre>
     *
     * <code>string attribution_token = 2;</code>
     *
     * @return The bytes for attributionToken.
     */
    public com.google.protobuf.ByteString getAttributionTokenBytes() {
      java.lang.Object ref = attributionToken_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        attributionToken_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * A unique attribution token. This should be included in the
     * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
     * from this recommendation, which enables accurate attribution of
     * recommendation model performance.
     * </pre>
     *
     * <code>string attribution_token = 2;</code>
     *
     * @param value The attributionToken to set.
     * @return This builder for chaining.
     */
    public Builder setAttributionToken(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      attributionToken_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * A unique attribution token. This should be included in the
     * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
     * from this recommendation, which enables accurate attribution of
     * recommendation model performance.
     * </pre>
     *
     * <code>string attribution_token = 2;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearAttributionToken() {
      attributionToken_ = getDefaultInstance().getAttributionToken();
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * A unique attribution token. This should be included in the
     * [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent] logs resulting
     * from this recommendation, which enables accurate attribution of
     * recommendation model performance.
     * </pre>
     *
     * <code>string attribution_token = 2;</code>
     *
     * @param value The bytes for attributionToken to set.
     * @return This builder for chaining.
     */
    public Builder setAttributionTokenBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      attributionToken_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }

    private com.google.protobuf.LazyStringList missingIds_ =
        com.google.protobuf.LazyStringArrayList.EMPTY;

    private void ensureMissingIdsIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        missingIds_ = new com.google.protobuf.LazyStringArrayList(missingIds_);
        bitField0_ |= 0x00000004;
      }
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @return A list containing the missingIds.
     */
    public com.google.protobuf.ProtocolStringList getMissingIdsList() {
      return missingIds_.getUnmodifiableView();
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @return The count of missingIds.
     */
    public int getMissingIdsCount() {
      return missingIds_.size();
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param index The index of the element to return.
     * @return The missingIds at the given index.
     */
    public java.lang.String getMissingIds(int index) {
      return missingIds_.get(index);
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param index The index of the value to return.
     * @return The bytes of the missingIds at the given index.
     */
    public com.google.protobuf.ByteString getMissingIdsBytes(int index) {
      return missingIds_.getByteString(index);
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param index The index to set the value at.
     * @param value The missingIds to set.
     * @return This builder for chaining.
     */
    public Builder setMissingIds(int index, java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureMissingIdsIsMutable();
      missingIds_.set(index, value);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param value The missingIds to add.
     * @return This builder for chaining.
     */
    public Builder addMissingIds(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureMissingIdsIsMutable();
      missingIds_.add(value);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param values The missingIds to add.
     * @return This builder for chaining.
     */
    public Builder addAllMissingIds(java.lang.Iterable<java.lang.String> values) {
      ensureMissingIdsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, missingIds_);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearMissingIds() {
      missingIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * IDs of documents in the request that were missing from the default Branch
     * associated with the requested ServingConfig.
     * </pre>
     *
     * <code>repeated string missing_ids = 3;</code>
     *
     * @param value The bytes of the missingIds to add.
     * @return This builder for chaining.
     */
    public Builder addMissingIdsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureMissingIdsIsMutable();
      missingIds_.add(value);
      onChanged();
      return this;
    }

    private boolean validateOnly_;
    /**
     *
     *
     * <pre>
     * True if
     * [RecommendRequest.validate_only][google.cloud.discoveryengine.v1beta.RecommendRequest.validate_only]
     * was set.
     * </pre>
     *
     * <code>bool validate_only = 4;</code>
     *
     * @return The validateOnly.
     */
    @java.lang.Override
    public boolean getValidateOnly() {
      return validateOnly_;
    }
    /**
     *
     *
     * <pre>
     * True if
     * [RecommendRequest.validate_only][google.cloud.discoveryengine.v1beta.RecommendRequest.validate_only]
     * was set.
     * </pre>
     *
     * <code>bool validate_only = 4;</code>
     *
     * @param value The validateOnly to set.
     * @return This builder for chaining.
     */
    public Builder setValidateOnly(boolean value) {

      validateOnly_ = value;
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * True if
     * [RecommendRequest.validate_only][google.cloud.discoveryengine.v1beta.RecommendRequest.validate_only]
     * was set.
     * </pre>
     *
     * <code>bool validate_only = 4;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearValidateOnly() {
      bitField0_ = (bitField0_ & ~0x00000008);
      validateOnly_ = false;
      onChanged();
      return this;
    }

    @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.discoveryengine.v1beta.RecommendResponse)
  }

  // @@protoc_insertion_point(class_scope:google.cloud.discoveryengine.v1beta.RecommendResponse)
  private static final com.google.cloud.discoveryengine.v1beta.RecommendResponse DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.cloud.discoveryengine.v1beta.RecommendResponse();
  }

  public static com.google.cloud.discoveryengine.v1beta.RecommendResponse getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

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

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

  @java.lang.Override
  public com.google.cloud.discoveryengine.v1beta.RecommendResponse getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
