{
  "schema": {
    "options": {
      "properties": {
        "options.username": {
          "type": "username",
          "title": "Username description"
        }
      },
      "type": "object",
      "title": "Common configuration"
    }
  },
  "model": {},
  "global": {
    "owner": "user",
    "properties": [
      "cache",
      "demoting_error_warning",
      "disabled",
      "force_store_value",
      "frozen",
      "hidden",
      "validator",
      "warnings"
    ],
    "permissives": [
      "hidden"
    ]
  },
  "form": {
    "options.username": {
      "clearable": true,
      "pattern": "^[a-z_][a-z0-9_-]{0,30}[$a-z0-9_-]{0,1}$",
      "type": "input"
    },
    "null": [
      {
        "title": "Configurer",
        "type": "submit"
      }
    ]
  },
  "version": "1.0"
}