def warn(self, text):
        self.userWarnings.append(text)
Test that we can use whatever client to send the command "echo goodbye"
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/conch/test/test_knownhosts.py/FakeUI.warn--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/conch/test/test_conch.py/ForwardingMixin.test_exec