code: def _get_chunk_key(filenames):
      # lists are not hashable so key on the first filename in a chunk
      return filenames[0]
  
file_path: milvus/internal/core/build-support/run_clang_tidy.py
imports: from __future__ import print_function
  import argparse
  import multiprocessing
  import lintutils
  from subprocess import PIPE
  import sys
  from functools import partial
  import re
label_desc: Use image node_id 1 for calling a global function with example usage: _get_chunk_key(filenames) and returns: filenames