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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 stop(self, block=False):
 """ Tell the daemon process to stop. Sends the SIGTERM signal to the daemon process, requesting it to terminate. If ``block`` is true then the call blocks until the daemon process has exited. This may take some time since the daemon process will complete its on-going backup activities before shutting down. ``block`` can either be ``True`` (in which case it blocks indefinitely) or a timeout in seconds. The return value is ``True`` if the daemon process has been stopped and ``False`` otherwise. .. versionadded:: 0.3 The ``block`` parameter """

        self.send_signal(signal.SIGTERM)
        return _block(lambda: not self.is_running(), block)