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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 inputs(self, name):
 """List input names and types of a step in the steps library. Args: name (str):
 name of a step in the steps library. """

        self._closed()

        step = self._get_step(name, make_copy=False)
        return step.list_inputs()