code: def main(args):
      nntxt_names = []
      with open("nntxt.py", "w") as f:
          for name, nntxt_file, nntxt_filename in get_nntxt_file():
              comment = "# The nntxt is generated from {}. \n".format(
                  nntxt_filename
              )
              f.write(comment)
              code = "{} = r'''{}'''\n".format(name, nntxt_file.read())
              nntxt_names.append(name)
              f.write(code)
          f.write("\n")
          code = "NNTXT_CASES=[{}]".format(",".join(nntxt_names))
          f.write(code)
  
imports: import glob
  import argparse
  import os
label_desc: Use image node_id 2 for calling a global function with example usage: main(args) without return types