code: def check_env_flag(name, default=""):
      return os.getenv(name, default).upper() in [
          "ON",
          "1",
          "YES",
          "TRUE",
          "Y",
      ]
  
file_path: captum/setup.py
imports: import os
  import re
  import subprocess
  import sys
  from setuptools import find_packages, setup
label_desc: Use image node_id 1 for calling a global function with example usage: check_env_flag(name, default) and returns: unknown