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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(self, sid, token):
 """ Add new sensor to the database Parameters sid : str SensorId token : str """

        try:
            self.dbcur.execute(SQL_SENSOR_INS, (sid, token))
        except sqlite3.IntegrityError:  # sensor entry exists
            pass