code: def normalize_name(name):
      
      if not name:
          return name
      elif isinstance(name, (bytes, bytearray)):
          name = name.decode('utf-8')
      try:
          return idna.decode(name, uts46=True, std3_rules=True)
      except idna.IDNAError as exc:
          raise InvalidName("%s is an invalid name, because %s" % (name, exc)) from exc
docs: Clean the fully qualified name, as defined in ENS `EIP-137
      <https://github.com/ethereum/EIPs/blob/master/EIPS/eip-137.md#name-syntax>`_
  
      This does *not* enforce whether ``name`` is a label or fully qualified domain.
  
      :param str name: the dot-separated ENS name
      :raises InvalidName: if ``name`` has invalid syntax