/**
 * Convert a file URL to a runtime-native filesystem path.
 *
 * Local and `localhost` URLs are supported on every runtime. A non-local host
 * becomes a UNC path on Windows; other runtimes reject it because no
 * unambiguous local path representation exists.
 *
 * @throws {TypeError} If the URL is not a file URL, contains an encoded path
 * separator, or names a non-local host on a non-Windows runtime.
 */
export declare function fromFileUrl(url: string | URL): string;
export declare function toFileUrl(path: string): URL;
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