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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 conform(self, frame, axis='items'):
 """ Conform input DataFrame to align with chosen axis pair. Parameters frame : DataFrame axis : {'items', 'major', 'minor'} Axis the input corresponds to. E.g., if axis='major', then the frame's columns would be items, and the index would be values of the minor axis Returns ------- DataFrame """

        axes = self._get_plane_axes(axis)
        return frame.reindex(**self._extract_axes_for_slice(self, axes))