retrieve:
Return the details about the given Spoken Language id.

list:
List all Spoken Language objects.

GET /api/v1/spoken_languages/2/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2,
    "code": "EN",
    "fr_label": "anglais",
    "en_label": "English",
    "activated": true
}