/**
 * An item in an {@link AppConfig}.
 */
export interface ItemConfig {
    /**
     * The item's type. See {@link ItemType}.
     */
    $type?: string;
    /**
     * The item's ID. No two items of the same type within an App can have the
     * same ID (however, items of different types can have the same ID).
     */
    id?: string;
    /**
     * Type-specific properties of the item.
     */
    [properties: string]: unknown;
}