def move_forward(num_steps):
assert int(num_steps) == num_steps, "<STR_LIT>" + str(num_steps)<EOL>_make_cnc_request("<STR_LIT>" + str(num_steps))<EOL>state['<STR_LIT>'].forward(num_steps)<EOL>state['<STR_LIT>'] += num_steps<EOL>
Moves the brush forward a few steps in the direction that its "turtle" is facing.

    Arguments:
        num_steps - a number like 20. A bigger number makes the brush move farther.