code: def dyld_env(env, var):
      if env is None:
          env = os.environ
      rval = env.get(var)
      if rval is None:
          return []
      return rval.split(":")
  
file_path: catboost/contrib/tools/python3/src/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 1 for calling a global function with example usage: dyld_env(env, var) and returns: rval, list