code: def dyld_image_suffix(env=None):
      if env is None:
          env = os.environ
      return env.get("DYLD_IMAGE_SUFFIX")
  
file_path: cpython/Lib/ctypes/macholib/dyld.py
imports: import os
  from ctypes.macholib.framework import framework_info
  from ctypes.macholib.dylib import dylib_info
  from itertools import *
label_desc: Use image node_id 2 for calling a global function with example usage: dyld_image_suffix(env) and returns: env