{
  "id": "coffee",
  "initial": "Ready",
  "states": {
    "Ready": {
      "on": {
        "ORDER": "Preparing"
      }
    },
    "Preparing": {
      "initial": "Grinding",
      "on": {
        "CANCEL": "Ready"
      },
      "states": {
        "Grinding": {
          "on": {
            "GROUND": "Brewing"
          }
        },
        "Brewing": {
          "on": {
            "BREWED": "Steaming milk"
          }
        },
        "Steaming milk": {
          "on": {
            "STEAMED": "#coffee.Served"
          }
        }
      }
    },
    "Served": {
      "type": "final"
    }
  }
}