import { EventEmitter } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';
import { NzModalService } from 'ng-zorro-antd/modal';
import { Observable } from 'rxjs';
import { HelpGetData, HelpStructure } from './help-shell/help-shell.component';
export interface HelpOption<T> {
    title?: string;
    structure?: HelpStructure;
    data?: T[];
    getData?: HelpGetData<T>;
    tableFields?: (string | string[])[];
    nameField?: string;
    getTableOnSelectTree?: (clickedNode: any) => Observable<T[]>;
    getTree?: () => Observable<T[]>;
    expandedKeys?: string[];
}
export declare class HelpService {
    private modal;
    private translate;
    private modalRef;
    constructor(modal: NzModalService, translate: TranslateService);
    show<T extends object>({ title, structure, getData, tableFields, getTableOnSelectTree, expandedKeys }: HelpOption<T>): EventEmitter<any[] | T>;
}