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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _wake(self):
 """ Wake the multiplexer by writing a byte. If Broker is midway through teardown, the FD may already be closed, so ignore EBADF. """

        try:
            self.transmit_side.write(b(' '))
        except OSError:
            e = sys.exc_info()[1]
            if e.args[0] != errno.EBADF:
                raise