API endpoint that allows users to be viewed or edited.

GET /api/users/b9c57777-d75e-4a10-b5a5-262b2b9b6d4e/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/b9c57777-d75e-4a10-b5a5-262b2b9b6d4e/?format=api",
    "username": "吃成个胖子"
}