import { ElementRef, AfterViewInit } from '@angular/core';
import { NgControl } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class NumberMaskDirective implements AfterViewInit {
    ngControl: NgControl;
    private el;
    noLabel: boolean;
    constructor(ngControl: NgControl, el: ElementRef);
    ngAfterViewInit(): void;
    onModelChange(event: any): void;
    keydownBackspace(event: any): void;
    onInputChange(inputValue: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NumberMaskDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NumberMaskDirective, "[numberMask]", never, { "noLabel": { "alias": "noLabel"; "required": false; }; }, {}, never, never, true, never>;
}