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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 connect(self, coro):
 """ The coroutine `coro` is connected to the signal. The coroutine must return a true value, unless it wants to be disconnected from the signal. .. note:: This is different from the return value convention with :attr:`AdHocSignal.STRONG` and :attr:`AdHocSignal.WEAK`. :meth:`connect` returns a token which can be used with :meth:`disconnect` to disconnect the coroutine. """

        self.logger.debug("connecting %r", coro)
        return self._connect(coro)