import { Entity, ViewModel, ViewModelState } from "@farris/devkit-vue";
import { BefRepository } from "./bef-repository";
export declare abstract class BefTreeRepository<T extends Entity> {
    protected viewModel: ViewModel<ViewModelState>;
    protected repository: BefRepository<T>;
    constructor(viewModel: ViewModel<ViewModelState>);
    /**
     * 新增同级
     * @param id
     */
    abstract addSibling(id: string): Promise<T>;
    /**
     * 新增子级
     * @param parentId
     */
    abstract addChild(parentId: string): Promise<T>;
}