@query_params('help')
    def help(self, params=None):
        return self.transport.perform_request('GET', '/_cat', params=params)
Establish that the _echo_method subcommand class works in the
dataset/ETHPy150Open elastic/elasticsearch-py/elasticsearch/client/cat.py/CatClient.help--crossover with--dataset/ETHPy150Open ansible/tower-cli/tests/test_models_base.py/SubcommandTests.test_echo_method