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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 image2source_plane(self, kwargs_source, kwargs_lens, image_plane=False):
 """ maps the image plane position definition of the source plane :param kwargs_source: :param kwargs_lens: :return: """

        kwargs_source_copy = copy.deepcopy(kwargs_source)
        for i, kwargs in enumerate(kwargs_source_copy):
            if self._image_plane_source_list[i] is True and not image_plane:
                if 'center_x' in kwargs:
                    x_mapped, y_mapped = self._image2SourceMapping.image2source(kwargs['center_x'], kwargs['center_y'],
                                                                                kwargs_lens, idex_source=i)
                    kwargs['center_x'] = x_mapped
                    kwargs['center_y'] = y_mapped
        return kwargs_source_copy