code: def dump_images(out_dir, images, prefix):
      if not os.path.exists(out_dir):
          os.mkdir(out_dir)
      for i, img in enumerate(images):
          Image.fromarray(img).save(
              os.path.join(out_dir, f"{prefix}_{i:07d}.png")
          )
  
file_path: consistency_models/datasets/lsun_bedroom.py
imports: import argparse
  import io
  import os
  from PIL import Image
  import lmdb
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: dump_images(out_dir, images, prefix) without return types