code: def verify_packages(
      packages: Optional[Union[str, List[str]]]
  ) -> None:
      if not packages:
          return
      if isinstance(packages, str):
          packages = packages.splitlines()
  
      for package in packages:
          if not package:
              continue
  
          # Ignore comments
          if package.startswith("#"):
              continue
  
          match = RE_PATTERN.match(package)
          if match:
              name = match.group("name")
              operation = match.group("operation1")
              version = match.group("version1")
              _verify_package(name, operation, version)
          else:
              raise ValueError(
                  "Unable to read requirement: %s" % package
              )
  
file_path: auto-sklearn/autosklearn/util/dependencies.py
imports: from typing import List, Optional, Union, no_type_check
  import importlib
  from distutils.version import LooseVersion
  import pkg_resources
  from autosklearn.util import RE_PATTERN
label_desc: Use image node_id 1 for calling a global function with example usage: verify_packages(packages) without return types