import { PipeTransform } from '@angular/core';
import { ChatMessage } from '../interfaces/chat-message.interface';
import * as i0 from "@angular/core";
export declare class TlMessageFilterPipe implements PipeTransform {
    groupMessages: any[];
    transform(messages: ChatMessage[]): any;
    findIndexByDate(date: number): number;
    hasDateGroup(date: Date): boolean;
    formatDate(date: Date): number;
    static ɵfac: i0.ɵɵFactoryDeclaration<TlMessageFilterPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<TlMessageFilterPipe, "filterMessage", false>;
}
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