code: public OperationStatus update(UUID appId, ApplicationUpdateObject applicationUpdateObject) {
          return updateWithServiceResponseAsync(appId, applicationUpdateObject).toBlocking().single().body();
      }
docs: Updates the name or description of the application.
  
  @param appId The application ID.
  @param applicationUpdateObject A model containing Name and Description of the application.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ErrorResponseException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the OperationStatus object if successful.