code: def code(self):
          
  
          def uniq(seq):
              """
              @type seq: str
              @return: None
              """
              seen = set()
              seen_add = seen.add
              return [x for x in seq if x not in seen and not seen_add(x)]
  
          # noinspection PyTypeChecker
          a = uniq(i for i in self.autos if i is not None)
          # noinspection PyTypeChecker
          e = uniq(i for i in self.errors if i is not None)
  
          if e:
              return '\n'.join(e)
  
          return '\n'.join(a)
docs: code