<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def list_delete(self, id):
 """ Delete a list. """

        id = self.__unpack_id(id)
        self.__api_request('DELETE', '/api/v1/lists/{0}'.format(id))