import { OnInit, ChangeDetectorRef } from '@angular/core';
import { LetterOnBoard } from '@schoolbelle/api/letter-to-board';
import { BadgeService } from '@schoolbelle/api/badge';
import { Subscription } from 'rxjs';
export declare class LetterNewBadgeComponent implements OnInit {
    private badge;
    private cdRef;
    item: LetterOnBoard;
    constructor(badge: BadgeService, cdRef: ChangeDetectorRef);
    subscription: Subscription;
    ngOnInit(): void;
    ngOnDestroy(): void;
    readonly isNew: boolean;
}