def add_error(self, message):
        self.action.add_error(message)
:param readable: The filelike object to read from.
dataset/ETHPy150Open Havate/havate-openstack/proto-build/gui/horizon/Horizon_GUI/horizon/workflows/base.py/Step.add_error--crossover with--dataset/ETHPy150Open openstack/python-swiftclient/swiftclient/utils.py/LengthWrapper.__init__