def graph_fn(boxes):
     return spatial_ops.box_grid_coordinate_vectors(boxes,
                                                    size_y=4,
                                                    size_x=4)
 def graph_fn(boxes):
     return spatial_ops.box_grid_coordinate_vectors(boxes,
                                                    size_y=2,
                                                    size_x=4,
                                                    align_corners=True)