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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 after_loop(self, coro):
 """A function that also acts as a decorator to register a coroutine to be called after the loop finished running. Parameters coro: :term:`py:awaitable` The coroutine to register after the loop finishes. Raises ------- TypeError The function was not a coroutine. """


        if not (inspect.iscoroutinefunction(coro) or inspect.isawaitable(coro)):
            raise TypeError('Expected coroutine or awaitable, received {0.__name__!r}.'.format(type(coro)))

        self._after_loop = coro