code: def main():
      urls = [
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/"
              "Sarcophilus_harrisii_taranna.jpg/"
              "320px-Sarcophilus_harrisii_taranna.jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/"
              "Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project.jpg/"
              "320px-Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project"
              ".jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/"
              "Galerella_sanguinea_Zoo_Praha_2011-2.jpg/207px-Galerella_sanguinea_"
              "Zoo_Praha_2011-2.jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/"
              "Ambrosius_Bosschaert_the_Elder_%28Dutch_-_Flower_Still_Life_-_"
              "Google_Art_Project.jpg/307px-Ambrosius_Bosschaert_the_Elder_%28"
              "Dutch_-_Flower_Still_Life_-_Google_Art_Project.jpg"
          ),
      ]
  
      image = imageio.imread(urls[3])
  
      aug = iaa.RemoveSaturation()
      images_aug = aug(images=[image] * (5 * 5))
  
      ia.imshow(ia.draw_grid(images_aug))
  
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types