curl --request PATCH \
  --url https://api.example.com/api/v1/school/sessions/{session_pk}/exam-sessions/{exam_session_pk}/marks/{id}/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "studentadmissionnumber": "<string>",
  "mark": -1,
  "symbol": "<string>",
  "comment": "<string>",
  "is_deleted": true
}
'

{
  "studentadmissionnumber": "<string>",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "exam": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "mark": -1,
  "symbol": "<string>",
  "comment": "<string>",
  "is_deleted": true,
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}