code: def code(self):
          
  
          def uniq(seq):
              """
              Utility function that removes duplicate.
              """
              seen = set()
              seen_add = seen.add
              # This way removes duplicates while preserving the order.
              return [x for x in seq if x not in seen and not seen_add(x)]
  
          data_set = uniq(i for i in self.autos if i is not None)
          error_list = uniq(i for i in self.errors if i is not None)
          if error_list:
              return "\n".join(error_list)
          return "\n".join(data_set)
docs: Removes duplicates values in auto and error list.
          parameters.