API endpoint that allows users to be viewed or edited.

GET /api/users/a196475f-dd88-4a92-9edb-c6ea9b330cd8/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/a196475f-dd88-4a92-9edb-c6ea9b330cd8/?format=api",
    "username": "价投123"
}