/**
 * The number of online group members has changed. This update with non-zero count is
 * sent only for currently opened chats. There is no guarantee that it will be sent
 * just after the count has changed
 */
export declare class UpdateChatOnlineMemberCountBaseModel {
    _: 'updateChatOnlineMemberCount';
    /** Identifier of the chat */
    chatId: number;
    /** New number of online members in the chat, or 0 if unknown */
    onlineMemberCount: number;
}