core/homeassistant/components/demo/strings.json

{
  "title": "Demo",
  "options": {
    "step": {
      "init": {
        "data": {}
      },
      "options_1": {
        "data": {
          "bool": "Optional boolean",
          "int": "Numeric input"
        }
      },
      "options_2": {
        "data": {
          "string": "String value",
          "select": "Select an option",
          "multi": "Multiselect"
        }
      }
    }
  }
}