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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 get_service(self, uuid):
 """Lookup information about a given GATT service. Args: uuid (str):
 a string containing the hex-encoded service UUID Returns: None if an error occurs, otherwise a :class:`Service` object. """

        if uuid in self.services:
            return self.services[uuid]

        if pp_hex(uuid) in self.services:
            return self.services[pp_hex(uuid)]

        return None