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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 close_connection(self, address, cause):
 """ Closes the connection with given address. :param address: (:class:`~hazelcast.core.Address`), address of the connection to be closed. :param cause: (Exception), the cause for closing the connection. :return: (bool), ``true`` if the connection is closed, ``false`` otherwise. """

        try:
            connection = self.connections[address]
            connection.close(cause)
        except KeyError:
            self.logger.warning("No connection with %s was found to close.", address, extra=self._logger_extras)
            return False