Returns a single membership selected by `id`.
GET /api-openparlamento/v1/19/memberships_votes/15427643/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 15427643,
    "voting_slug": "vs19_634_029",
    "sitting": {
        "id": 2232,
        "date": "2026-03-25",
        "number": 634,
        "branch": "C"
    },
    "title": "ARTICOLO 3 - Votazione Articolo 3 ",
    "vote": "ABSE",
    "group": {
        "id": 24,
        "acronym": "Nessun gruppo",
        "slug": null,
        "branch": "parlamento",
        "name": "Nessun gruppo",
        "color": "#989898"
    },
    "group_vote": "NVOT"
}