import { OnInit } from '@angular/core';
import { Comment, CommentService } from './comment.service';
export declare class CommentListingComponent implements OnInit {
    private commentService;
    comments: Comment[];
    commentsTreeExpanded: any[];
    user: any;
    constructor(commentService: CommentService);
    ngOnInit(): void;
    private getComments();
    private getCommentsWithReplies();
    private expandCommentsTree(comments);
    refresh(proceed: boolean): void;
    upvoted(comment: Comment): void;
    downvoted(comment: Comment): void;
    clear(): void;
}