def __init__(self):

        self.context = util.threading.local()
        self.__engines = {}
        super(ThreadLocalMetaData, self).__init__()
Traceback eliot messages are written to the given L{LogPublisher} with
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/sql/schema.py/ThreadLocalMetaData.__init__--crossover with--dataset/ETHPy150Open ClusterHQ/eliot/eliot/tests/test_twisted.py/RedirectLogsForTrialTests.test_tracebackMessages