Operations on URL-style encodings.
module Url: sigval escape : string -> string"%HX"
URL-escaping format.val unescape : string ->
error:(string -> 'error) -> (string, 'error) Biocaml_internal_utils.Result.t"%HX" escaped characters to a normal
string. In case of error, the string is passed to the ~error parameter
and the function returns its result.end