import { APIUnread } from "../api";
import { Client } from "../Client";
import { Channel } from "../objects/Channel";
import { Message } from "../objects/Message";
import { MiniMapEmitter } from "../utils/MiniEmitter";
export declare class UnreadManager extends MiniMapEmitter<APIUnread> {
    client: Client;
    constructor(client: Client);
    /** Fetch new unread data from server. */
    sync(): Promise<void>;
    /** Mark a channel as read and optionally send to server. */
    markRead(channel: Channel, message_id?: string, emit?: boolean): Promise<void>;
    /** Mark a channel unread with a custom last_id. */
    markUnread(channel: Channel, last_id: string): void;
    /** Add a mention to a message. */
    markMention(message: Message): void;
}