import { Validator, AbstractControl } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class Base64Validator implements Validator {
    validate(c: AbstractControl): {
        [key: string]: any;
    };
    static ɵfac: i0.ɵɵFactoryDeclaration<Base64Validator, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Base64Validator, "[base64][formControlName],[base64][formControl],[base64][ngModel]", never, {}, {}, never, never, false>;
}