computer generated art def draw_koch(sizedepth)if depth for angle in anglesdraw_koch(size depth turtle left(angleelseturtle forward(sizedepth get_input_depth(setup_screen('koch snowflake (depth str(depth')'background='black'screen_size_x= screen_size_y= set foreground colours turtle color('sky blue'ensure snowflake is centred turtle penup(turtle setposition(- , turtle left( turtle pendown(draw three sides of snowflake for in range( )draw_koch(size_of_snowflakedepthturtle right( ensure that all the drawing is rendered turtle update(print('done'turtle done(several different runs of the program are shown below with the depth set at and