import { Resolve, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs';
import { TreeService } from '@schoolbelle/api/group-to-group';
import { GroupMemberService } from '@schoolbelle/api/group-member';
export declare class AbstractLetterWriteResolve implements Resolve<any> {
    protected tree: TreeService;
    protected member: GroupMemberService;
    constructor(tree: TreeService, member: GroupMemberService);
    resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<any>;
    prepare(): Observable<[any, import("@schoolbelle/api/group-member/schoolbelle-api-group-member").GroupMember[], import("@schoolbelle/api/group-member/schoolbelle-api-group-member").GroupMember[]]>;
}