Get a creative

curl --request GET \
  --url https://your_a2_service/creatives/{id} \
  --header 'Authorization: Bearer <token>'

{
  "banner": {
    "ext": {},
    "img": "",
    "link": {
      "ext": {},
      "url": ""
    }
  },
  "cid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created_at": "2023-11-07T05:31:56Z",
  "description": "<string>",
  "height": 123,
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "<string>",
  "native": {
    "ext": {},
    "link": {
      "ext": {},
      "url": ""
    }
  },
  "no": 123,
  "owner_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "status": "inactive",
  "type": "banner",
  "updated_at": "2023-11-07T05:31:56Z",
  "video": {
    "adm": "",
    "ctype": 2,
    "dur": 0,
    "ext": {
      "cdn": "",
      "linear": 1,
      "link": {
        "ext": {},
        "url": ""
      },
      "url": ""
    },
    "mime": ""
  },
  "width": 123
}