def serialize(self, value):
        if type(value) is self.type_:
            return self.format % value
        return unicode(value)
Change an entity's nick name in a MUC room.
dataset/ETHPy150Open jek/flatland/flatland/schema/scalars.py/Number.serialize--crossover with--dataset/ETHPy150Open ralphm/wokkel/wokkel/muc.py/MUCClient.nick