public WorkflowsStub getStub() {
    return stub;
  }
Constructs an instance of WorkflowsClient, 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-workflows/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1/WorkflowsClient.java