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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 add_rule(self, value, tag):
 """Add a new rule :param value: str :param tag: str :return: dict of a json response """

        resp = requests.post(url=self.REQUEST_URL.format(**self._params),
                             json={'rule': {'value': value, 'tag': tag}})
        return resp.json()