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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(self, sid):
 """ Constructs a AddOnResultContext :param sid: The unique string that identifies the resource to fetch :returns: twilio.rest.api.v2010.account.recording.add_on_result.AddOnResultContext :rtype: twilio.rest.api.v2010.account.recording.add_on_result.AddOnResultContext """

        return AddOnResultContext(
            self._version,
            account_sid=self._solution['account_sid'],
            reference_sid=self._solution['reference_sid'],
            sid=sid,
        )