import { FormControl, FormGroup } from '@angular/forms';
import { BaseAbstract } from './BaseAbstract';
export declare class MatchingPassword extends BaseAbstract {
    private keyError;
    private passwordControl;
    private confirmPasswordControl;
    constructor(keyError: string, passwordControlKey: FormControl, confirmPasswordControlKey: FormControl);
    protected validate(): (form: FormGroup) => {
        [key: string]: any;
    };
}