docs: def _is_target_region(self, stat, game_region):
          """Returns if the stat matches target game region.
  
              :param stat: Json of gameplay stat.
              :type stat: dict
              :param game_region: Target game region.
              :type game_region: str
              :return: return does the stat matches target game region.
              :rtype: bool
          """
          if game_region == constants.GAME_REGION_WILDCARD:
              return True
          return stat['Region'] == game_region