import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';
import { Observable } from 'rxjs';
import { AuthService } from '@schoolbelle/api/auth';
import { GroupService } from '@schoolbelle/api/group';
import { BoardService } from '@schoolbelle/api/board';
import { LetterService } from '@schoolbelle/api/letter';
import { ReadListModalService } from './read-list.service';
export declare class ReadListGuard implements CanActivate {
    private auth;
    private group;
    private board;
    private letter;
    private readListModalService;
    private router;
    constructor(auth: AuthService, group: GroupService, board: BoardService, letter: LetterService, readListModalService: ReadListModalService, router: Router);
    canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean;
}