import { OnChanges, OnDestroy } from '@angular/core';
import * as i0 from "@angular/core";
export declare class NgxMatTimepickerAutofocusDirective implements OnChanges, OnDestroy {
    private readonly _element;
    private readonly _document;
    isFocusActive: boolean;
    private _activeElement;
    ngOnChanges(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxMatTimepickerAutofocusDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NgxMatTimepickerAutofocusDirective, "[ngxMatTimepickerAutofocus]", never, { "isFocusActive": { "alias": "ngxMatTimepickerAutofocus"; "required": false; }; }, {}, never, never, true, never>;
}