code: def region(self):
          
  
          region_item = [subtag for subtag in self.subtags if subtag.type == 'region']
  
          return region_item[0] if len(region_item) > 0 else None
docs: Get the region :class:`language_tags.Subtag.Subtag` of the tag.
  
          :return: region :class:`language_tags.Subtag.Subtag` that is part of the tag.
              The return can be None.