import * as i0 from "@angular/core";
export declare class FocusHandler {
    static document: Document;
    private static get focusableList();
    private static get focusableEnabledList();
    static previous(ev?: Event): void;
    static next(ev?: Event): void;
    static previousEnabled(ev?: Event): void;
    static nextEnabled(ev?: Event): void;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<FocusHandler, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FocusHandler>;
}