Returns a single membership selected by `id`.
GET /api-openparlamento/v1/19/memberships_votes/13981518/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 13981518,
    "voting_slug": "vs19_502_001",
    "sitting": {
        "id": 2030,
        "date": "2025-07-01",
        "number": 502,
        "branch": "C"
    },
    "title": "DDL 2461 - DIS 1.1 - Votazione ",
    "vote": "ABSE",
    "group": {
        "id": 16,
        "acronym": "LEGA",
        "slug": "Lega",
        "branch": "camera",
        "name": "LEGA - SALVINI PREMIER",
        "color": "#73AF48"
    },
    "group_vote": "NO"
}