import { PipeTransform } from '@angular/core';
import { ChatMessage } from '../interfaces/chat-message.interface';
export declare class TlMessageFilterPipe implements PipeTransform {
    groupMessages: any[];
    transform(messages: ChatMessage[]): any;
    findIndexByDate(date: number): number;
    hasDateGroup(date: Date): boolean;
    formatDate(date: Date): number;
}
