Returns a single membership selected by `id`.
GET /api-openparlamento/v1/19/memberships_votes/13969904/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 13969904,
    "voting_slug": "vs19_499_009",
    "sitting": {
        "id": 2025,
        "date": "2025-06-25",
        "number": 499,
        "branch": "C"
    },
    "title": "MANTENIMENTO ARTICOLO 8 - Votazione Articolo 8 ",
    "vote": "NO",
    "group": {
        "id": 11,
        "acronym": "FDI",
        "slug": "FdI",
        "branch": "camera",
        "name": "FRATELLI D'ITALIA",
        "color": "#37A6A5"
    },
    "group_vote": "NO"
}