import { OnInit } from '@angular/core';
import { AbstractControl, FormControl, ValidationErrors, Validator } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class NotEqualToValidator implements Validator, OnInit {
    notEqualTo: FormControl | undefined;
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): ValidationErrors | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<NotEqualToValidator, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NotEqualToValidator, "[notEqualTo][formControlName],[notEqualTo][formControl],[notEqualTo][ngModel]", never, { "notEqualTo": "notEqualTo"; }, {}, never>;
}