shopify_api/test/fixtures/payments.json

{
  "payments" : [
    {
      "id": "east-44a400ef20b36e38f10b882cb7260796",
      "amount": 10.00,
      "session_id": "east-44a400ef20b36e38f10b882cb7260796",
      "unique_token": "my-client-generated-idempotency-token"
    }
  ]
}