code: def main(repo):
      """
      Checks for copyright headers in all the modified files. In case of local
      repo, this script will just look for uncommitted files and in case of CI
      it compares between branches "$PR_TARGET_BRANCH" and "current-pr-branch"
      """
  
      default_base_branch = str(repo.active_branch)
  
      argparser = argparse.ArgumentParser(
          "Checks for a consistent copyright header in git's modified files"
      )
      argparser.add_argument(
          dest="files",
          metavar="filename",
          nargs="*",
          type=Path,
          help="If provided, only check the files the provided names.",
      )
      argparser.add_argument(
          "-i",
          "--fix-in-place",
          action="store_true",
          required=False,
          help="If set, "
          "update the current year if a header is already "
          "present and well formatted.",
      )
      argparser.add_argument(
          "--base-branch",
          default=default_base_branch,
          help=f"Specify which branch/commit to compare against (default: {default_base_branch})",
      )
      argparser.add_argument(
          "--exclude",
          dest="exclude",
          action="append",
          default=["python/cuml/_thirdparty/"],
          help=(
              "Exclude the paths specified (regexp). "
              "Can be specified multiple times."
          ),
      )
      argparser.add_argument(
          "-v", "--verbosity", action="count", default=0
      )
  
      args = argparser.parse_args()
  
      logging.basicConfig(
          level=max(0, logging.ERROR - args.verbosity * 10)
      )
  
      upstream_base_branch = find_upstream_base_branch(
          str(args.base_branch)
      )
  
      exempted = FILES_TO_EXCLUDE + [
          re.compile(ex) for ex in args.exclude
      ]
  
      def include(path: os.PathLike):
          for exempt in exempted:
              if exempt.search(os.fspath(path)):
                  return False
          for included in FILES_TO_INCLUDE:
              if included.search(os.fspath(path)):
                  break
          else:
              return False
          return path.is_file()
  
      files = [
          f
          for f in find_files(args.files, repo, upstream_base_branch)
          if include(f)
      ]
  
      issues = [
          (file, list(find_copyright_issues(file))) for file in files
      ]
  
      num_fixes = 0
      num_issues = 0
  
      for path, issues_ in issues:
          fixes = []
          for line_no, description, fix in issues_:
              print(f"{path}:{line_no}: {description}")
              num_issues += 1
              if fix:
                  fixes.append((line_no, fix))
          num_fixes += len(fixes)
          if fixes and args.fix_in_place:
              perform_updates(path, fixes)
  
      try:
          if args.fix_in_place:
              if num_fixes < num_issues:
                  raise RuntimeError("Unable to fix all issues.")
          elif 0 < num_fixes < num_issues:
              raise RuntimeError(
                  "Use the '-i/--fix-in-place' option to fix some of the issues."
              )
          elif 0 < num_fixes == num_issues:
              raise RuntimeError(
                  "Use the '-i/--fix-in-place' option to fix the issues."
              )
      except RuntimeError as message:
          print(message)
          return 1
      else:
          return 0
  
imports: import argparse
  import datetime
  import logging
  import os
  import re
  import sys
  from pathlib import Path
  from typing import Optional
  import git
label_desc: Use image node_id 9 for calling a global function with example usage: main(repo) and returns: path, int, False, int, False