code: def main(args):
      args = parse_args(args)
      with open(args.requirements_yaml_location) as f:
          requirements_yaml = yaml.load(f, Loader=yaml.SafeLoader)
      validate_requirements_yaml(requirements_yaml)
      requirements_txt_content = generate_requirements_txt_content(
          requirements_yaml
      )
      with open(args.requirements_txt_output_location, "w") as f:
          # Write requirements file content with a trailing newline
          f.write(AUTOGENERATED_HEADER + "\n")
          f.write(requirements_txt_content + "\n")
  
imports: import argparse
  import sys
  import yaml
label_desc: Use image node_id 4 for calling a global function with example usage: main(args) without return types