footprint: [[0.1, 0.1], [-0.1, 0.1], [-0.1, -0.1], [0.1, -0.1]] footprint2: x: [0.1, -0.1, -0.1, 0.1] y: [0.1, 0.1, -0.1, -0.1] footprint: [[0.1, 0.1], [-0.1, 0.1, 77.0], [-0.1, -0.1], [0.1, -0.1]] footprint2: 1.0 footprint3: false footprint4: [[0.1, 0.1], [0.1, 0.1]] footprint5: ['x', 'y', 'z'] footprint6: [['x', 'y'], ['a', 'b'], ['c'], ['d']] footprint7: x: [0.1, -0.1, -0.1, 0.1] footprint8: x: 0 y: 0 footprint9: x: ['a', 'b', 'c'] y: [d, e, f]