public static string saveMappings(this MethodMappings savedMethodMappings, string targetFile)
        {
            var savedFile = savedMethodMappings.saveMappings();

            if (savedFile.fileExists())
            {
                Files.MoveFile(savedFile, targetFile);
                if (targetFile.fileExists())
                {
                    return(targetFile);
                }
            }
            return("");
        }