code: def get_refund_request(self, id, **data):
          
          
          return self.get("/refund_requests/{0}/".format(id), data=data)
docs: GET /refund_requests/:id/
          Gets a :format:`refund-request` for the specified refund request.
          error NOT_AUTHORIZED
          Only the order's buyer can create a refund request
          error FIELD_UNKNOWN
          The refund request id provided is unknown