import { OnInit, ChangeDetectorRef } from '@angular/core';
import { Subscription } from 'rxjs';
import { BadgeService, BadgeNotification } from '@schoolbelle/api/badge';
export declare class AbstractNotificationListComponent implements OnInit {
    protected badge: BadgeService;
    protected cdRef: ChangeDetectorRef;
    protected subscription: Subscription;
    notificationList: (BadgeNotification & {
        cnt: number;
    })[];
    badgeTotal: number;
    constructor(badge: BadgeService, cdRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    /**
     * only one of the notifications for the same letter sent to multiple classes has msg and content.
     * should fill the msg and content of the other notifications
     * @param li
     * @param list
     */
    protected fillMsgAndContent(li: BadgeNotification, list: BadgeNotification[]): BadgeNotification;
    protected getGroupByLetterId(li: BadgeNotification): string;
    protected getGroupByKey(li: BadgeNotification): string;
    isNew(li: BadgeNotification): boolean;
    protected groupNotificationList(list?: BadgeNotification[]): Array<BadgeNotification & {
        cnt: number;
    }>;
}