@BetaApi
  public final OperationsClient getHttpJsonOperationsClient() {
    return httpJsonOperationsClient;
  }
Returns the OperationsClient that can be used to query the status of a long-running operation
returned by another API method call.
java-telcoautomation/google-cloud-telcoautomation/src/main/java/com/google/cloud/telcoautomation/v1/TelcoAutomationClient.java