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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)