def METHOD_NAME(self):
    try:
        return self._call_update({'id': self.object_id, 'status': 'preprocess'})
        # return self.rest_api.call(
        #     'update_experiment_session',
        #     {'id': self.object_id, 'status': 'preprocess'})
    except Exception as e:
        self.ctx.log(
            'Start experiment session failed. Try one more time ...: %s' % (e))
        #Try one more time
        time.sleep(60)
        return self._call_update({'id': self.object_id, 'status': 'preprocess'})
        # return self.rest_api.call(
        #     'update_experiment_session',
        #     {'id': self.object_id, 'status': 'preprocess'})
    # self.wait_for_status(['waiting', 'preprocess', 'started'])