import { Message } from './message';
import { NestedDay } from './nested-day';
/**
 * Creates group of messages nested by day.
 * Takes a flat messages list from the database as input.
 */
export declare class NestedMessages {
    $lang: string;
    $nestedList: Array<NestedDay>;
    constructor(messages?: Array<Message>);
    lang(lang: string): this;
    getNests(): Array<NestedDay>;
    create(messages: Array<Message>): this;
}