code: def check_clang_apply_replacements_binary(args):
    
    try:
      subprocess.check_call([args.clang_apply_replacements_binary, '--version'])
    except:
      print('Unable to run clang-apply-replacements. Is clang-apply-replacements '
            'binary correctly specified?', file=sys.stderr)
      traceback.print_exc()
      sys.exit(1)
docs: Checks if invoking supplied clang-apply-replacements binary works.