def __and__(self, other):
        if other is None:
            other = SerializableFunction()
        if isfunction(other):
            other = SerializableFunction(other)
        f = SerializableFunction()
        f &= self
        f &= other
        return f
dataset/ETHPy150Open dimagi/commcare-hq/corehq/ex-submodules/couchexport/util.py/SerializableFunction.__and__/original