@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<pre>
The message returned to the client by the `SynthesizeLongAudio` method.
</pre>

Protobuf type {@code google.cloud.texttospeech.v1.SynthesizeLongAudioResponse}
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/SynthesizeLongAudioResponse.java