def remove_listener(self, listener):
        """
        Remove the specified removal or ejection listener from the list of
        listeners.

        :Parameters:
            listener : function
                Function object to remove

        :rtype: bool
        :return: ``True`` if the listener was found and removed; ``False``
                 otherwise
        """
        try:
            del self.__removal_listeners[listener]
            return True
        except __HOLE__:
            return False
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/grizzled/grizzled/collections/dict.py/LRUDict.remove_listener