code: def os_version():
      return bjam.variable("OSVER")
  
file_path: turicreate/src/external/boost/boost_1_68_0/tools/build/src/util/utility.py
imports: import re
  import os
  import bjam
  from b2.exceptions import *
  from b2.util import is_iterable_typed
label_desc: Use image node_id 13 for calling a global function with example usage: os_version() and returns: bjam