def _add_command(self, name, **parameters):
        command = self._create_command(name, **parameters)
        self._commands.append(command)

        return command
Whether the given column header name exists.
dataset/ETHPy150Open sdispater/orator/orator/schema/blueprint.py/Blueprint._add_command--crossover with--dataset/ETHPy150Open google/textfsm/texttable.py/TextTable.__contains__