export declare function findNextElem(target: any): any;
export declare function findPrevElem(target: any): any;
export declare function HcModeChecker(): void;
export declare function focusNextTree(elem: any, rootElem?: any): void;
export declare function focusNextElem(elem: any, rootElem?: any): void;
export declare function focusPrevElem(elem: any, parentRef?: any): void;