import { Item } from '../baseItem.js';
import { ItemSettings } from '../itemSettings.js';
import { ItemType } from '../itemType.js';
export type AppItemType<S = ItemSettings> = {
    type: typeof ItemType.APP;
    extra: AppItemExtra;
} & Item<S>;
/**
 * App Extra
 */
export type AppItemExtraProperties = {
    url: string;
};
export type AppItemExtra = {
    [ItemType.APP]: AppItemExtraProperties;
};
export declare const getAppExtra: <U extends AppItemExtra>(extra: U) => U[typeof ItemType.APP];
export declare const buildAppExtra: ({ url, }: AppItemExtraProperties) => AppItemExtra;
/**
 * App Setting
 */