roulette.e

{
  "name": "receipt",
  "base": "",
  "fields": [
    {
      "name": "game_id",
      "type": "uint64"
    },
    {
      "name": "seed",
      "type": "checksum256"
    },
    {
      "name": "result",
      "type": "uint8"
    }
  ]
}