code: def _combine_w0614(self, messages):
          
          by_loc = defaultdict(list)
          out = []
  
          for message in messages:
              if message.code == 'unused-wildcard-import':
                  by_loc[message.location].append(message)
              else:
                  out.append(message)
  
          for location, message_list in by_loc.items():
              names = []
              for msg in message_list:
                  names.append(
                      _UNUSED_WILDCARD_IMPORT_RE.match(msg.message).group(1))
  
              msgtxt = 'Unused imports from wildcard import: %s' % ', '.join(
                  names)
              combined_message = Message('pylint', 'unused-wildcard-import',
                                         location, msgtxt)
              out.append(combined_message)
  
          return out
docs: For the "unused import from wildcard import" messages,
          we want to combine all warnings about the same line into
          a single message.