def getQueryPayload(self):
        tag=self.getTag('query')
        if tag: return tag.getPayload()
`_registerNamedSingleton`: register a `NamedSingleton`
dataset/ETHPy150Open CouchPotato/CouchPotatoServer/libs/xmpp/protocol.py/Iq.getQueryPayload--crossover with--dataset/ETHPy150Open ufora/ufora/packages/python/pyfora/PyObjectWalker.py/PyObjectWalker._registerNamedSingleton