def is_connected(self, callback):
        """
        Returns True if the event is connected to the given function.

        :type  callback: object
        :param callback: The callback function.
        :rtype:  bool
        :returns: Whether the signal is connected to the given function.
        """
        index = self._weakly_connected_index(callback)
        if index is not None:
            return True
        if self.hard_subscribers is None:
            return False
        return callback in self._hard_callbacks()
def is_connected(self, callback):
        """
        Returns True if the event is connected to the given function.

        :type  callback: object
        :param callback: The callback function.
        :rtype:  bool
        :returns: Whether the signal is connected to the given function.
        """
        index = self._weakly_connected_index(callback)
        if index is not None:
            return True
        if self.hard_subscribers is None:
            return False
        return callback in self._hard_callbacks()
def is_connected ( self , callback ) : index = self . _weakly_connected_index ( callback ) if index is not None : return True if self . hard_subscribers is None : return False return callback in self . _hard_callbacks ( )
Returns True if the event is connected to the given function.

        :type  callback: object
        :param callback: The callback function.
        :rtype:  bool
        :returns: Whether the signal is connected to the given function.
Returns True if the event is connected to the given function .