code: def main(args: argparse.Namespace) -> None:
      data = fetch_vcpu_mapping()
      with args.output_fn.open("w") as fout:
          util.yaml_safe_dump(data, fout)
  
file_path: determined/harness/determined/deploy/aws/gen_vcpu_mapping.py
imports: import argparse
  import json
  from pathlib import Path
  from typing import Dict, Iterable, List, Tuple
  import boto3
  from determined.common import util
label_desc: Use image node_id 3 for calling a global function with example usage: main(args) without return types