python import vex def create_plane(): vex.setGeometryType("poly") vex.addPoint((0, 0, 0)) vex.addPoint((1, 0, 0)) vex.addPoint((1, 1, 0)) vex.addPoint((0, 1, 0)) vex.addPolygon((0, 1, 2, 3)) vex.block(create_plane)