import { File, Minithumbnail, PhotoSize } from '@airgram-dev/core';
/** Describes a document of any type */
export declare class DocumentBaseModel {
    _: 'document';
    /** Original name of the file; as defined by the sender */
    fileName: string;
    /** MIME type of the file; as defined by the sender */
    mimeType: string;
    /** Document minithumbnail; may be null */
    minithumbnail?: Minithumbnail;
    /**
     * Document thumbnail in JPEG or PNG format (PNG will be used only for background patterns);
     * as defined by the sender; may be null
     */
    thumbnail?: PhotoSize;
    /** File containing the document */
    document: File;
}