import { MessageContentUnion, MessageForwardInfo, MessageSendingStateUnion, ReplyMarkupUnion } from './index';
export declare type MessageUnion = Message;
/** Describes a message */
export interface Message {
    _: 'message';
    /** Message identifier, unique for the chat to which the message belongs */
    id: number;
    /**
     * Identifier of the user who sent the message; 0 if unknown. It is unknown for channel
     * posts
     */
    senderUserId: number;
    /** Chat identifier */
    chatId: number;
    /** Information about the sending state of the message; may be null */
    sendingState?: MessageSendingStateUnion;
    /** True, if the message is outgoing */
    isOutgoing: boolean;
    /**
     * True, if the message can be edited. For live location and poll messages this fields
     * shows, whether editMessageLiveLocation or stopPoll can be used with this message
     * by the client
     */
    canBeEdited: boolean;
    /** True, if the message can be forwarded */
    canBeForwarded: boolean;
    /**
     * True, if the message can be deleted only for the current user while other users will
     * continue to see it
     */
    canBeDeletedOnlyForSelf: boolean;
    /** True, if the message can be deleted for all users */
    canBeDeletedForAllUsers: boolean;
    /**
     * True, if the message is a channel post. All messages to channels are channel posts,
     * all other messages are not channel posts
     */
    isChannelPost: boolean;
    /** True, if the message contains an unread mention for the current user */
    containsUnreadMention: boolean;
    /** Point in time (Unix timestamp) when the message was sent */
    date: number;
    /** Point in time (Unix timestamp) when the message was last edited */
    editDate: number;
    /** Information about the initial message sender; may be null */
    forwardInfo?: MessageForwardInfo;
    /**
     * If non-zero, the identifier of the message this message is replying to; can be the
     * identifier of a deleted message
     */
    replyToMessageId: number;
    /**
     * For self-destructing messages, the message's TTL (Time To Live), in seconds; 0 if
     * none. TDLib will send updateDeleteMessages or updateMessageContent once the TTL expires
     */
    ttl: number;
    /** Time left before the message expires, in seconds */
    ttlExpiresIn: number;
    /** If non-zero, the user identifier of the bot through which this message was sent */
    viaBotUserId: number;
    /** For channel posts, optional author signature */
    authorSignature: string;
    /** Number of times this message was viewed */
    views: number;
    /**
     * Unique identifier of an album this message belongs to. Only photos and videos can
     * be grouped together in albums
     */
    mediaAlbumId: string;
    /** Content of the message */
    content: MessageContentUnion;
    /** Reply markup for the message; may be null */
    replyMarkup?: ReplyMarkupUnion;
}