code: def get_grades_by_regid_and_term(regid, term):
      
      url = "{}/{},{},{}.json".format(enrollment_res_url_prefix,
                                      term.year,
                                      term.quarter,
                                      regid)
      return _json_to_grades(get_resource(url), regid, term)
docs: Returns a StudentGrades model for the regid and term.