code: def _process_json(json_data):
      
      requests = []
      for item in json_data:
          degree = GradDegree()
          degree.degree_title = item["degreeTitle"]
          degree.exam_place = item["examPlace"]
          degree.exam_date = parse_datetime(item.get("examDate"))
          degree.req_type = item["requestType"]
          degree.major_full_name = item["majorFullName"]
          degree.submit_date = parse_datetime(item.get("requestSubmitDate"))
          degree.decision_date = parse_datetime(item.get('decisionDate'))
          degree.status = item["status"]
          degree.target_award_year = item["targetAwardYear"]
          if item.get("targetAwardQuarter")and\
             len(item.get("targetAwardQuarter")):
              degree.target_award_quarter = item["targetAwardQuarter"].lower()
  
          requests.append(degree)
      return requests
docs: return a list of GradDegree objects.