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import {    copyFile,    createTempFile,    downloadFile,    File,    isAbsolutePath,} from "./deps.deno.ts";
export interface FileX {    /** Computes a URL from the `file_path` property of this file object. The     * URL can be used to download the file contents.     *     * If you are using a local Bot API server, then this method will return the     * file path that identifies the local file on your system.     *     * If the `file_path` of this file object is `undefined`, this method will     * throw an error.     *     * Note that this method is installed by grammY on [the File     * object](https://core.telegram.org/bots/api#file).     */    getUrl(): string;    /**     * This method will download the file from the Telegram servers and store it     * under the given file path on your system. It returns the absolute path to     * the created file, so this may be the same value as the argument to the     * function.     *     * If you omit the path argument to this function, then a temporary file     * will be created for you. This path will still be returned, hence giving     * you access to the downloaded file.     *     * If you are using a local Bot API server, then the local file will be     * copied over to the specified path, or to a new temporary location.     *     * If the `file_path` of this file object is `undefined`, this method will     * throw an error.     *     * Note that this method is installed by grammY on [the File     * object](https://core.telegram.org/bots/api#file).     *     * @param path Optional path to store the file (default: temporary file)     * @returns An absolute file path to the downloaded/copied file     */    download(path?: string): Promise<string>;}
export function installFileMethods(    file: File,    linkBuilder: (path: string) => string | URL,) {    const methods: FileX = {        getUrl: () => {            const path = file.file_path;            if (path === undefined) {                const id = file.file_id;                throw new Error(`File path is not available for file '${id}'`);            }            if (isAbsolutePath(path)) return path;            const link = linkBuilder(path);            if (link instanceof URL) return link.href;            return link;        },        download: async (path?: string) => {            const url = methods.getUrl();            if (path === undefined) path = await createTempFile();            if (isAbsolutePath(url)) await copyFile(url, path);            else await downloadFile(url, path);            return path;        },    };    Object.assign(file, methods);}