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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 update(self, data):
 """ Set given keys to their respective values @data: #dict or :class:RedisMap of |{key: value}| entries to set """

        if not data:
            return
        _rk, _dumps = self.get_key, self._dumps
        data = self._client.mset({
            _rk(key): _dumps(value)
            for key, value in data.items()})