(self, to_notify)
:param to_notify: ApplyResult object to notify when all the
        results we're waiting for become available. Can be None.
:param to_notify: ApplyResult object to notify when all the
        results we're waiting for become available. Can be None.
: param to_notify : ApplyResult object to notify when all the results we re waiting for become available . Can be None .
def __init__(self, to_notify):
        """
        :param to_notify: ApplyResult object to notify when all the
        results we're waiting for become available. Can be None.
        """
        self._to_notify = to_notify
def __init__ ( self , to_notify ) : self . _to_notify = to_notify