"""
#sposób 1
blocks.fill(43, pos(2, 0, 2), pos(6, 4, 6))
blocks.fill(AIR, pos(3, 1, 3), pos(5, 3, 5))
"""
#sposób 2
blocks.fill(43, pos(2, 0, 2), pos(20, 20, 20), FillOperation.HOLLOW)