@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + DISABLE_ATTRIBUTION_FIELD_NUMBER;
    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisableAttribution());
    switch (sourceCase_) {
      case 2:
        hash = (37 * hash) + VERTEX_AI_SEARCH_FIELD_NUMBER;
        hash = (53 * hash) + getVertexAiSearch().hashCode();
        break;
      case 4:
        hash = (37 * hash) + VERTEX_RAG_STORE_FIELD_NUMBER;
        hash = (53 * hash) + getVertexRagStore().hashCode();
        break;
      case 0:
      default:
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Optional. Deprecated. This option is no longer supported.
</pre>

<code>
bool disable_attribution = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
</code>

@deprecated google.cloud.vertexai.v1.Retrieval.disable_attribution is deprecated. See
    google/cloud/vertexai/v1/tool.proto;l=219
@return The disableAttribution.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Retrieval.java