public static com.google.cloud.texttospeech.v1.VoiceSelectionParams getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }
<pre>
Optional. The configuration for a voice clone. If
[VoiceCloneParams.voice_clone_key] is set, the service chooses the voice
clone matching the specified configuration.
</pre>

<code>
.google.cloud.texttospeech.v1.VoiceCloneParams voice_clone = 5 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/VoiceSelectionParams.java