export declare const Z_INDEX_STEP = 1;
export declare const Z_INDEX_POPUP = 1000;
export declare const Z_INDEX_DRAWER: number;
export declare const Z_INDEX_MODAL: number;
export declare const Z_INDEX_MESSAGE: number;
export declare const Z_INDEX_NOTIFICATION: number;
export declare const POPUP_STACK_BASE_Z_INDEX = 1000;
export declare const MESSAGE_STACK_BASE_Z_INDEX: number;