declare module "encodeurl" {
  /**
   * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
   *
   * This function will take an already-encoded URL and encode all the non-URL
   * code points. This function will not encode the "%" character unless it is
   * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
   * be encoded as `%25foo`).
   *
   * This encode is meant to be "safe" and does not throw errors. It will try as
   * hard as it can to properly encode the given URL, including replacing any raw,
   * unpaired surrogate pairs with the Unicode replacement character prior to
   * encoding.
   */
  function encodeurl(url: string): string
  export = encodeurl
}