export declare const assetDir: import("node:url").URL;
/**
 * Read a file from the server assets directory.
 *
 * @param filename The path to the file to read, relative to the assets directory.
 *
 *   param encoding If specified, decode the file using this encoding.
 * @returns The content of the specified file.
 */
export declare function readAsset(filename: string): Promise<Buffer>;
export declare function readAsset(filename: string, encoding: BufferEncoding): Promise<string>;