code: def json_data(self):
          
          return {
              "type": self.type,
              "recruiter": self.recruiter_id,
              "assignment_id": self.assignment_id,
              "hit_id": self.hit_id,
              "mode": self.mode,
              "end_time": self.end_time,
              "base_pay": self.base_pay,
              "bonus": self.bonus,
              "status": self.status,
          }
docs: Return json description of a participant.