import { type Provider } from '@angular/core';
import type { FormFieldControl } from './types';
import * as i0 from "@angular/core";
/**
 * This class contains the logic of getting the default control of a MatFormField.
 * Extend it to implement a custom getter method.
 */
export declare class NgxMatErrorControl {
    protected readonly matFormField: import("@angular/material/form-field").MatFormField | null;
    get(): undefined | FormFieldControl | FormFieldControl[];
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxMatErrorControl, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgxMatErrorControl>;
}
/**
 * Provides the default control accessor of a MatFormField.
 */
export declare function provideDefaultNgxMatErrorControl(): Provider;