/**
 * 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 { NzSafeAny } from 'ng-zorro-antd/core/types';
import { FilterableDataSource } from './filterable-data-source';
export declare abstract class CrudDataSource2<T, F> extends FilterableDataSource<T, F> {
    protected constructor(initialData?: T[], filterPredicate?: NzSafeAny);
    add(model: T): void;
    remove(model: T): void;
    update(model: T): void;
    addOrUpdate(model: T): void;
    applyFilter(filterValue: F): void;
    updateData(data: T[], clearFilter?: boolean): void;
    /**
     * a 와 b 가 동등한지 체크한다
     * @param a
     * @param b
     */
    abstract isEquals(a: T, b: T): boolean;
}