public static string ToFriendlyString(this VersionRange version)
 {
     if (version.Equals(VersionRange.All))
     {
         return("all");
     }
     if (version.Equals(VersionRange.None))
     {
         return("none");
     }
     return(version.PrettyPrint()
            .TrimStart('(')
            .TrimEnd(')'));
 }