code: def _ReverseHostname(self, hostname):
      
      if not hostname:
        return ''
  
      if len(hostname) <= 1:
        return hostname
  
      if hostname[-1] == '.':
        return hostname[::-1][1:]
  
      return hostname[::-1][0:]
docs: Reverses the hostname and strips the leading dot.
  
      The hostname entry is reversed:
        moc.elgoog.www.
      Should be:
        www.google.com
  
      Args:
        hostname (str): reversed hostname.
  
      Returns:
        str: hostname without a leading dot.