curl --request GET \
  --url https://api.gcore.com/fastedge/v1/admin/groups/{id} \
  --header 'Authorization: <api-key>'

{
  "name": "<string>",
  "default_flag": false,
  "clients": [
    {
      "id": 123
    }
  ],
  "templates": [
    {
      "id": 123,
      "name": "<string>",
      "api_type": "<string>",
      "owned": true,
      "client_id": 123,
      "reseller_id": 123,
      "groups": [
        123
      ],
      "short_descr": "<string>",
      "long_descr": "<string>"
    }
  ]
}