/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { SelectableZorroDataSource } from 'ng-stalk/core/crud';
import { NzSafeAny } from 'ng-zorro-antd/core/types';
import { Subject } from 'rxjs';
export declare abstract class ContentAreaImpl2<T, F> {
    dataSource?: SelectableZorroDataSource<T, F>;
    componentId: string;
    protected unsubscribeAll: Subject<NzSafeAny>;
    protected constructor();
    onInit(): void;
    onDestroy(): void;
    abstract makeDataSource(): SelectableZorroDataSource<T, F>;
    getDataSource(): SelectableZorroDataSource<T, F>;
}