code: def generate_tempfile(directory: str = None, **kwargs):
      """Generate a temporary file"""
      directory = hubenv.TMP_HOME if not directory else directory
      with tempfile.NamedTemporaryFile(dir=directory, **kwargs) as file:
          yield file
  
imports: import base64
  import contextlib
  import hashlib
  import importlib
  import math
  import os
  import socket
  import sys
  import tempfile
  import time
  import traceback
  import types
  from typing import Generator
  from typing import List
  from urllib.parse import urlparse
  import cv2
  import numpy
  import packaging.version
  import requests
  import paddlehub.env
  import paddlehub.utils
  from paddlehub.utils.log import logger
label_desc: Use image node_id 4 for calling a global function with example usage: generate_tempfile(directory) without return types