def add_event(self, runnable, eta, service=None, event_id=None):
    raise NotImplementedError()
Serialise JID into string.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/request_info.py/Dispatcher.add_event--crossover with--dataset/ETHPy150Open CouchPotato/CouchPotatoServer/libs/xmpp/protocol.py/JID.__str__