text: import numpy as np
  from vg.compat import v2 as vg
  
  
  def write_canvas_points_to_png(canvas_coords, width, height, out_path):
      import png
  
      vg.shape.check(locals(), "canvas_coords", (-1, 2))
  
      bitmap = np.zeros((height, width), dtype=np.int8)
      for x, y in canvas_coords:
          x = int(x)
          y = int(y)
          if x >= 0 and x < width and y >= 0 and y < height:
              bitmap[y][x] = 255
  
      png.from_array(bitmap, mode="L").save(out_path)
  