{ "row_boundaries": [ 0.0, 0.2145965901664986, 0.4480907391063933, 0.7086202525448272, 1.0 ], "col_boundaries": [ 0.0, 0.5136187465626157, 1.0 ], "car_paths": [ [ 4, 2, 0 ], [ 6, 7 ], [ 5, 3, 1 ] ] }