@java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return com.google.cloud.texttospeech.v1.TextToSpeechLongAudioSynthesisProto
          .internal_static_google_cloud_texttospeech_v1_SynthesizeLongAudioRequest_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              com.google.cloud.texttospeech.v1.SynthesizeLongAudioRequest.class,
              com.google.cloud.texttospeech.v1.SynthesizeLongAudioRequest.Builder.class);
    }
<pre>
The top-level message sent by the client for the
`SynthesizeLongAudio` method.
</pre>

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