public static final TextToSpeechClient create(TextToSpeechSettings settings) throws IOException {
    return new TextToSpeechClient(settings);
  }
Constructs an instance of TextToSpeechClient, using the given settings. The channels are
created based on the settings passed in, or defaults for any settings that are not set.
java-texttospeech/google-cloud-texttospeech/src/main/java/com/google/cloud/texttospeech/v1/TextToSpeechClient.java