code: def _validate_client_command(command: ClientCommand):
      """Extract method and its metadata from a ClientCommand."""
      params = inspect.signature(command.method).parameters
      command_metadata = {
          "cls_path": inspect.getfile(command.__class__),
          "cls_name": command.__class__.__name__,
          "params": {
              p.name: _to_annotation(str(p.annotation))
              for p in params.values()
          },
          **command._to_dict(),
      }
      method = command.method
      command.models = {}
      for k, v in command_metadata["params"].items():
          if v == "_empty":
              raise Exception(
                  f"Please, annotate your method {method} with pydantic BaseModel. Refer to the documentation."
              )
          config = getattr(sys.modules[command.__module__], v, None)
          if config is None:
              config = getattr(sys.modules[method.__module__], v, None)
              if config:
                  raise Exception(
                      f"The provided annotation for the argument {k} should in the file "
                      f"{inspect.getfile(command.__class__)}, not {inspect.getfile(command.method)}."
                  )
          if config is None or not issubclass(config, BaseModel):
              raise Exception(
                  f"The provided annotation for the argument {k} shouldn't an instance of pydantic BaseModel."
              )
  
imports: import errno
  import inspect
  import os
  import os.path
  import shutil
  import sys
  import traceback
  from dataclasses import asdict
  from getpass import getuser
  from importlib.util import module_from_spec, spec_from_file_location
  from tempfile import gettempdir
  from typing import Any, Callable, Dict, List, Optional, Union
  import requests
  from fastapi import HTTPException
  from pydantic import BaseModel
  from lightning.app.api.http_methods import Post
  from lightning.app.api.request_types import _APIRequest, _CommandRequest, _RequestResponse
  from lightning.app.utilities import frontend
  from lightning.app.utilities.app_helpers import Logger, is_overridden
  from lightning.app.utilities.cloud import _get_project
  from lightning.app.utilities.network import LightningClient
  from lightning.app.utilities.state import AppState
label_desc: Use image node_id 4 for calling a global function with example usage: _validate_client_command(command) without return types