def METHOD_NAME(self):
    db = Db()
    obj = {'db': db.cfgdb}
    config.ADHOC_VALIDATION = True
    runner = CliRunner()
    result = runner.invoke(config.config.commands["portchannel"].commands["member"].commands["add"], ["PortChannel0001","Ethernet20"], obj=obj)
    print(result.exit_code)
    print(result.output)
    assert result.exit_code != 0
    assert result.output == add_lag_member_with_non_deft_tpid_configured