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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 to_jsondict(self):
 """ Returns a dict expressing the flow stats. """

        body = {"oxs_fields": [ofproto.oxs_to_jsondict(k, uv) for k, uv
                               in self.fields],
                "length": self.length}
        return {self.__class__.__name__: body}