code: def validate_wandb_python_deps(
      requirements_file: Optional[str],
      dir: str,
  ) -> None:
      """Warn if local python dependencies differ from wandb requirements.txt."""
      if requirements_file is not None:
          requirements_path = os.path.join(dir, requirements_file)
          with open(requirements_path) as f:
              wandb_python_deps: List[str] = f.read().splitlines()
  
          local_python_file = get_local_python_deps(dir)
          if local_python_file is not None:
              local_python_deps_path = os.path.join(
                  dir, local_python_file
              )
              with open(local_python_deps_path) as f:
                  local_python_deps: List[str] = f.read().splitlines()
  
              diff_pip_requirements(
                  wandb_python_deps, local_python_deps
              )
              return
      _logger.warning("Unable to validate local python dependencies")
  
imports: import asyncio
  import json
  import logging
  import os
  import platform
  import re
  import subprocess
  import sys
  from collections import defaultdict
  from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, cast
  import click
  import wandb
  import wandb.docker
  from wandb import util
  from wandb.apis.internal import Api
  from wandb.errors import CommError
  from wandb.sdk.launch.errors import LaunchError
  from wandb.sdk.launch.git_reference import GitReference
  from wandb.sdk.launch.wandb_reference import WandbReference
  from wandb.sdk.wandb_config import Config
  from .builder.templates._wandb_bootstrap import FAILED_PACKAGES_POSTFIX, FAILED_PACKAGES_PREFIX
label_desc: Use image node_id 20 for calling a global function with example usage: validate_wandb_python_deps(requirements_file, dir) without return types