code: def proj_lib_path(fn):
      return os.path.normpath(os.path.join(PROJ_LIB_PATH, fn))
  
file_path: CNTK/bindings/python/setup.py
imports: import sys
  import os
  import shutil
  from glob import glob
  import platform
  from warnings import warn
  from setuptools import setup, Extension, find_packages
  import numpy
  import re
label_desc: Use image node_id 3 for calling a global function with example usage: proj_lib_path(fn) and returns: os