@Override
  public UnaryCallable<ListPhraseSetsRequest, ListPhraseSetsPagedResponse>
      listPhraseSetsPagedCallable() {
    return listPhraseSetsPagedCallable;
  }
Constructs an instance of GrpcSpeechStub, using the given settings. This is protected so that
it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
java-speech/google-cloud-speech/src/main/java/com/google/cloud/speech/v2/stub/GrpcSpeechStub.java