public Builder mergeFrom(com.google.cloud.texttospeech.v1.SynthesizeSpeechRequest other) {
      if (other == com.google.cloud.texttospeech.v1.SynthesizeSpeechRequest.getDefaultInstance())
        return this;
      if (other.hasInput()) {
        mergeInput(other.getInput());
      }
      if (other.hasVoice()) {
        mergeVoice(other.getVoice());
      }
      if (other.hasAudioConfig()) {
        mergeAudioConfig(other.getAudioConfig());
      }
      if (other.hasAdvancedVoiceOptions()) {
        mergeAdvancedVoiceOptions(other.getAdvancedVoiceOptions());
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
The top-level message sent by the client for the `SynthesizeSpeech` method.
</pre>

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