Returns a single membership selected by `id`.
GET /api-openparlamento/v1/19/memberships_votes/7142610/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 7142610,
    "voting_slug": "19-23-7",
    "sitting": {
        "id": 1258,
        "date": "2022-12-28",
        "number": 23,
        "branch": "S"
    },
    "title": "Legge di bilancio 2023",
    "vote": "NO",
    "group": {
        "id": 5,
        "acronym": "PD-IDP",
        "slug": "PD",
        "branch": "senato",
        "name": "Partito Democratico - Italia Democratica e Progressista",
        "color": "#E43B45"
    },
    "group_vote": "NO"
}