code: def add(self, game_object: Hashable, tags: Iterable[Hashable]=()) -> None:
          
          if isinstance(tags, (str, bytes)):
              raise TypeError("You passed a string instead of an iterable, this probably isn't what you intended.\n\nTry making it a tuple.")
          self.all.add(game_object)
  
          for kind in type(game_object).mro():
              self.kinds[kind].add(game_object)
          for tag in tags:
              self.tags[tag].add(game_object)
docs: Add a game_object to the container.
  
          game_object: Any Hashable object. The item to be added.
          tags: An iterable of Hashable objects. Values that can be used to
                retrieve a group containing the game_object.
  
          Examples:
              container.add(MyObject())
  
              container.add(MyObject(), tags=("red", "blue")