curl --request GET \
  --url https://api.meetcampfire.com/rr/api/v1/contracts/{contract_id}/bundles/{id} \
  --header 'Authorization: <api-key>'

{
  "id": 123,
  "lines": [
    {
      "id": 123,
      "product_name": "<string>",
      "amount": 0,
      "created_at": "2023-11-07T05:31:56Z",
      "last_modified_at": "2023-11-07T05:31:56Z",
      "customer": 123,
      "product": 123
    }
  ],
  "bundle_name": "<string>",
  "bundle_description": "<string>",
  "start_date": "2023-12-25",
  "end_date": "2023-12-25",
  "use_daily_accounting": true,
  "use_catchup": true,
  "catchup_date": "2023-12-25",
  "created_at": "2023-11-07T05:31:56Z",
  "last_modified_at": "2023-11-07T05:31:56Z",
  "customer": 123,
  "contract": 123
}