import { ElementRef, OnDestroy, OnInit, Renderer2 } from '@angular/core';
import { FormControl, NgControl } from "@angular/forms";
import * as i0 from "@angular/core";
export declare class FeInputErrorDirective implements OnInit, OnDestroy {
    private el;
    private renderer;
    private control;
    inputControl: FormControl | undefined;
    private validityChangeSubscription;
    constructor(el: ElementRef, renderer: Renderer2, control: NgControl);
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<FeInputErrorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FeInputErrorDirective, "[feInputError]", never, { "inputControl": { "alias": "inputControl"; "required": false; }; }, {}, never, never, true, never>;
}