code: def get_hash_from_bucket(
      bucket_uri: str, s3_sync_args: Optional[List[str]] = None
  ) -> str:
      s3_sync_args = s3_sync_args or []
      subprocess.run(
          ["awsv2", "s3", "cp", "--quiet"]
          + s3_sync_args
          + [os.path.join(bucket_uri, "refs", "main"), "."]
      )
  
      with open(os.path.join(".", "main"), "r") as f:
          f_hash = f.read().strip()
  
      return f_hash
  
file_path: ray/doc/source/templates/04_finetuning_llms_with_deepspeed/utils.py
imports: from typing import List, Optional
  import os
  import subprocess
  import logging
label_desc: Use image node_id 1 for calling a global function with example usage: get_hash_from_bucket(bucket_uri, s3_sync_args) and returns: f_hash