/**
 * Upload a file
 * @todo use Promise.withResolvers
 */
export declare function upload(type?: string, multiple?: boolean): Promise<File>;
/**
 * Downloads some data
 */
export declare function download(data: BlobPart, name: string): void;
/**
 * Create an instance of a `<template>`
 */
export declare function cloneTemplate(selector: string): DocumentFragment;