import { ElementRef } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * * Diretiva para elementos de input com apenas números.
 */
export declare class OnlyNumberDirective {
    private el;
    private regex;
    private specialKeys;
    constructor(el: ElementRef);
    onKeyDown(event: KeyboardEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<OnlyNumberDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<OnlyNumberDirective, "[appOnlyNumber]", never, {}, {}, never>;
}