code: def main():
      if not os.path.exists("data"):
          os.mkdir("data")
  
      with open("data/tokens.json", "w") as f:
          tokens = {}
          tokens["tokens"] = [
              "<START_Q>",
              "<END_Q>",
              "<START_A>",
              "<END_A>",
          ]
          f.write(json.dumps(tokens))
  
      for key, ds in dataset_splits.items():
          with open(f"data/{key}.jsonl", "w") as f:
              for item in ds:
                  newitem = {}
                  newitem["input"] = (
                      f"<START_Q>{item['question']}<END_Q>"
                      f"<START_A>{item['answer']}<END_A>"
                  )
                  f.write(json.dumps(newitem) + "\n")
  
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types