/** Types of attachments */
export declare enum AttachmentType {
    Image = 0,
    ImageAnimated = 1,
    Video = 2,
    Sticker = 3,
    Audio = 4,
    Document = 5,
    Other = 6
}
/** Extract the attachment type from the extension of a filename */
export declare const getAttachmentTypeFromFileName: (filename: string) => AttachmentType;
/** Extract the attachment type from a MIME type */
export declare const getAttachmentTypeFromMimeType: (mimeType: string) => AttachmentType;