def handle_lazy(self, caller, args=None, kwargs=None, context=None, parser=None):
        model, instance, field = parser(args, kwargs, context)
        if self.loaded in instance:
            message = LazyLoadMessage(model, field)
            self.parent.notify(message)
dataset/ETHPy150Open jmcarp/nplusone/nplusone/core/listeners.py/LazyListener.handle_lazy/swapped operands of `in`