import { RootLayoutBase } from './root-layout-common';
export declare function _findRootLayoutById(id: string): RootLayoutBase;
export declare function _pushIntoRootLayoutStack(rootLayout: RootLayoutBase): void;
export declare function _removeFromRootLayoutStack(rootLayout: RootLayoutBase): void;
export declare function _geRootLayoutFromStack(index: number): RootLayoutBase;