/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { OnDestroy, OnInit } from '@angular/core';
import { AbstractFormGroupDirective } from './abstract_form_group_directive';
import { ControlContainer } from './control_container';
export declare const modelGroupProvider: any;
/**
 * @whatItDoes Creates and binds a {@link FormGroup} instance to a DOM element.
 *
 * @howToUse
 *
 * This directive can only be used as a child of {@link NgForm} (or in other words,
 * within `<form>` tags).
 *
 * Use this directive if you'd like to create a sub-group within a form. This can
 * come in handy if you want to validate a sub-group of your form separately from
 * the rest of your form, or if some values in your domain model make more sense to
 * consume together in a nested object.
 *
 * Pass in the name you'd like this sub-group to have and it will become the key
 * for the sub-group in the form's full value. You can also export the directive into
 * a local template variable using `ngModelGroup` (ex: `#myGroup="ngModelGroup"`).
 *
 * {@example forms/ts/ngModelGroup/ng_model_group_example.ts region='Component'}
 *
 * * **npm package**: `@angular/forms`
 *
 * * **NgModule**: `FormsModule`
 *
 * @stable
 */
export declare class NgModelGroup extends AbstractFormGroupDirective implements OnInit, OnDestroy {
    name: string;
    constructor(parent: ControlContainer, validators: any[], asyncValidators: any[]);
}