dev/defs/inputs/user_input.json

{
  "name": "UserInput",
  "key": {
    "int": 663,
    "string": "userinput"
  },
  "properties": {
    "targetId": {
      "type": "Id",
      "initialValue": "Core.missingId",
      "key": {
        "int": 970,
        "string": "targetid"
      },
      "description": "Identifier used to track where this input is used",
      "runtime": false
    }
  }
}