@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + VOICE_CLONING_KEY_FIELD_NUMBER;
    hash = (53 * hash) + getVoiceCloningKey().hashCode();
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Required. Created by GenerateVoiceCloningKey.
</pre>

<code>string voice_cloning_key = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for voiceCloningKey.
java-texttospeech/proto-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/VoiceCloneParams.java