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type Options = { encoding: string };type Callback = (err: Error | null, path?: string) => void;
export function realpath(  path: string,  options?: Options | Callback,  callback?: Callback,) {  if (typeof options === "function") {    callback = options;  }  if (!callback) {    throw new Error("No callback function supplied");  }  Deno.realPath(path)    .then((path) => callback!(null, path))    .catch((err) => callback!(err));}
export function realpathSync(path: string): string {  return Deno.realPathSync(path);}