SummaryElement: FormElementBase & {
    elementIds: string[];
    type: "summary";
}

An element to summarize other form element values.

The element must have an id property that contains a universally unique identifier (UUID). The identifier must be a Version 4 (V4) UUID and must conform to the formatting requirements defined in this RFC 9562 specification: https://www.rfc-editor.org/rfc/rfc9562.html