code: def _make_unique(name, idx):
      
      p = re.compile(".[aA-zZ]+_x[0-9]+")
      if p.match(name):
          tags = name[1:].split("_x")
          return ">%s_%s_x%s" % (tags[0], idx, tags[1])
      return name.replace("@", ">")
docs: Make name unique in case only counts there