code: def decode_packet(packet: str) -> dict:
      
      node_id, _, protocol, attrs = packet.split(DELIM, 3)
  
      data = cast(Dict[str, Any], {
          'node': PacketHeader(node_id).name,
      })
  
      # make exception for version response
      data['protocol'] = UNKNOWN
      if '=' in protocol:
          attrs = protocol + DELIM + attrs
  
      # no attributes but instead the welcome banner
      elif 'RFLink Gateway' in protocol:
          data.update(parse_banner(protocol))
  
      elif protocol == 'PONG':
          data['ping'] = protocol.lower()
  
      # debug response
      elif protocol == 'DEBUG':
          data['protocol'] = protocol.lower()
          data['tm'] = packet[3:5]
  
      # failure response
      elif protocol == 'CMD UNKNOWN':
          data['response'] = 'command_unknown'
          data['ok'] = False
  
      # ok response
      elif protocol == 'OK':
          data['ok'] = True
  
      # its a regular packet
      else:
          data['protocol'] = protocol.lower()
  
      # convert key=value pairs where needed
      for attr in filter(None, attrs.strip(DELIM).split(DELIM)):
          key, value = attr.lower().split('=')
          if key in VALUE_TRANSLATION:
              value = VALUE_TRANSLATION.get(key)(value)
          name = PACKET_FIELDS.get(key, key)
          data[name] = value
          unit = UNITS.get(key, None)
  
          if unit:
              data[name + '_unit'] = unit
  
      # correct KaKu device address
      if data.get('protocol', '') == 'kaku' and len(data['id']) != 6:
          data['id'] = '0000' + data['id']
  
      return data
docs: Break packet down into primitives, and do basic interpretation.
  
      >>> decode_packet('20;06;Kaku;ID=41;SWITCH=1;CMD=ON;') == {
      ...     'node': 'gateway',
      ...     'protocol': 'kaku',
      ...     'id': '000041',
      ...     'switch': '1',
      ...     'command': 'on',
      ... }
      True