import { ElementRef, OnChanges } from '@angular/core';
/**
 * Aplica foco automátiamente em um elemento, com um delay de 500ms
 *
 * @example
 * <input type="text" [uexAutofocus]="true" />
 */
export declare class AutofocusDirective implements OnChanges {
    private _elementRef;
    private _autofocus;
    /**
     * @ignore
     */
    constructor(_elementRef: ElementRef);
    ngOnChanges(): void;
    private _doFocus;
}