code: def _parse_ND_at_response(self, packet_info):
          
          if packet_info['id'] == 'at_response' and \
                  packet_info['command'].lower() == b'nd' and \
                  packet_info['status'] == b'\x00':
              result = {}
  
              # Parse each field directly
              result['source_addr'] = packet_info['parameter'][0:2]
              result['source_addr_long'] = packet_info['parameter'][2:10]
  
              # Parse the null-terminated node identifier field
              null_terminator_index = 10
              while packet_info['parameter'][null_terminator_index:
                                             null_terminator_index+1] != b'\x00':
                  null_terminator_index += 1
  
              # Parse each field thereafter directly
              result['node_identifier'] = \
                  packet_info['parameter'][10:null_terminator_index]
              result['parent_address'] = \
                  packet_info['parameter'][null_terminator_index+1:
                                           null_terminator_index+3]
              result['device_type'] = \
                  packet_info['parameter'][null_terminator_index+3:
                                           null_terminator_index+4]
              result['status'] = \
                  packet_info['parameter'][null_terminator_index+4:
                                           null_terminator_index+5]
              result['profile_id'] = \
                  packet_info['parameter'][null_terminator_index+5:
                                           null_terminator_index+7]
              result['manufacturer'] = \
                  packet_info['parameter'][null_terminator_index+7:
                                           null_terminator_index+9]
  
              # Simple check to ensure a good parse
              if null_terminator_index+9 != len(packet_info['parameter']):
                  raise ValueError("Improper ND response length: expected {0}, "
                                   "read {1} bytes".format(
                                       len(packet_info['parameter']),
                                       null_terminator_index+9)
                                   )
  
              return result
          else:
              return packet_info['parameter']
docs: If the given packet is a successful AT response for an ND
          command, parse the parameter field.