public static io.grpc.ServiceDescriptor getServiceDescriptor() {
    io.grpc.ServiceDescriptor result = serviceDescriptor;
    if (result == null) {
      synchronized (TextToSpeechLongAudioSynthesizeGrpc.class) {
        result = serviceDescriptor;
        if (result == null) {
          serviceDescriptor =
              result =
                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
                      .setSchemaDescriptor(
                          new TextToSpeechLongAudioSynthesizeFileDescriptorSupplier())
                      .addMethod(getSynthesizeLongAudioMethod())
                      .build();
        }
      }
    }
    return result;
  }
<pre>
Synthesizes long form text asynchronously.
</pre>
java-texttospeech/grpc-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/TextToSpeechLongAudioSynthesizeGrpc.java