demo-process-models/playground/myome/dylans-pizza-palace/payment-schema.json

{
  "title": "Select Payment Type",
  "type": "object",
  "properties": {
    "payment_type": {
      "type": "array",
      "title": "Select Payment type",
      "items": {
        "type": "string",
        "enum": [
          "cc",
          "venmo"
        ]
      },
      "uniqueItems": true
    }
  }
}