import { type AbstractControl } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class TuiNativeValidator {
    private readonly el;
    private readonly doc;
    private readonly ngControl;
    protected readonly sub: import("rxjs").Subscription;
    /**
     * There is no `InteropNgControl.events` for signal forms
     * Their `InteropNgControl` state (getters `touched` / `invalid`) is backed by signals,
     * so the effect tracks it instead
     */
    protected readonly ref: import("@angular/core").EffectRef;
    readonly tuiNativeValidator: import("@angular/core").InputSignal<string>;
    id: string;
    get control(): AbstractControl | null;
    protected handleValidation(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiNativeValidator, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TuiNativeValidator, "[tuiNativeValidator]", never, { "tuiNativeValidator": { "alias": "tuiNativeValidator"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}