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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:
 async def trigger(self, action, args):
 """ Trigger action. :param action: :param args: :return: """

        handler_name = f"on_{action}"
        handler = getattr(self, handler_name, None)
        if not handler:
            return None
        await handler(*args)