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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def marshal_top(self, obj, cache=None):
 """Given a complete object that needs to be marshaled into Transit data, and optionally a cache, dispatch accordingly, and flush the data directly into the IO stream. """

        if not cache:
            cache = RollingCache()

        handler = self.handlers[obj]

        tag = handler.tag(obj)
        if tag:
            if len(tag) == 1:
                self.marshal(TaggedValue(QUOTE, obj), False, cache)
            else:
                self.marshal(obj, False, cache)
            self.flush()
        else:
            raise AssertionError("Handler must provide a non-nil tag: " + str(handler))