import { OnInit, TemplateRef } from "@angular/core"; import { Router } from '@angular/router'; import { Observable } from 'rxjs'; export declare class CurrentItem { id: string; text: string; url?: string; items?: CurrentItem[]; } export declare class LeftNavComponent implements OnInit { private router; url: any; selectItem$: Observable; currentItem: any; currentItems: CurrentItem[]; items: TemplateRef; constructor(router: Router); ngOnInit(): void; selectItem(e: any): void; }