interface IFileDoc {
    _id: string;
    length: number;
    chunkSize: number;
    uploadDate: Date;
    md5: string;
    filename: string;
    contentType?: string;
    aliases?: string[];
    metadata?: {
        originialFileName?: string;
        productid?: string;
    };
    isDeleted?: boolean;
}
/**
 * 将一个input为file的文件的文件内容转换为base64格式并上传到服务器
 * @param file_server 上传文件服务器，如192.168.40.196
 * @param productid webtest
 * @param node fileinput结点对象
 * @example upload(file_server, productid, node);
 */
export default function upload(file_server: string, productid: string, node: HTMLInputElement): Promise<IFileDoc>;
export {};