/**
 * Known chat type.
 */
export declare enum KnownChatType {
    FEED = 0,
    TEXT = 1,
    PHOTO = 2,
    VIDEO = 3,
    CONTACT = 4,
    AUDIO = 5,
    DITEMEMOTICON = 6,
    DITEMGIFT = 7,
    DITEMIMG = 8,
    KAKAOLINKV1 = 9,
    AVATAR = 11,
    STICKER = 12,
    SCHEDULE = 13,
    VOTE = 14,
    LOTTERY = 15,
    MAP = 16,
    PROFILE = 17,
    FILE = 18,
    STICKERANI = 20,
    NUDGE = 21,
    ACTIONCON = 22,
    SEARCH = 23,
    POST = 24,
    STICKERGIF = 25,
    REPLY = 26,
    MULTIPHOTO = 27,
    VOIP = 51,
    LIVETALK = 52,
    CUSTOM = 71,
    ALIM = 72,
    PLUSFRIEND = 81,
    PLUSEVENT = 82,
    PLUSFRIENDVIRAL = 83,
    OPEN_SCHEDULE = 96,
    OPEN_VOTE = 97,
    OPEN_POST = 98
}
export declare type ChatType = KnownChatType | number;
export declare const DELETED_MESSAGE_OFFSET = 16384;
export declare function isDeletedChat(type: ChatType): boolean;
export declare function getOriginalType(type: ChatType): ChatType;