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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 schedule(self, callback, *args, **kwargs):
 """Schedule the callback to be called asynchronously in a thread pool. Args: callback (Callable):
 The function to call. args: Positional arguments passed to the function. kwargs: Key-word arguments passed to the function. Returns: None """

        self._executor.submit(callback, *args, **kwargs)