docs: def add_keydown(self, actions, **kwargs):
          """
          Add a pygame.KEYDOWN event handler.
  
          actions - The methods to be called when this key is pressed.
  
          kwargs - The kwargs to be passed to self.add_handler.
  
          See the documentation for self.add_handler for examples.
          """
          return self.add_handler(pygame.KEYDOWN, actions, **kwargs)