code: def strtobool(val):
      """Convert a string representation of truth to true (1) or false (0).
  
      True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values
      are 'n', 'no', 'f', 'false', 'off', and '0'.  Raises ValueError if
      'val' is anything else.
      """
      # Copied from distutils
      val = val.lower()
      if val in ("y", "yes", "t", "true", "on", "1"):
          return 1
      elif val in ("n", "no", "f", "false", "off", "0"):
          return 0
      else:
          raise ValueError("invalid truth value %r" % (val,))
  
imports: import contextlib
  import os
  import os.path
  from os.path import join
  import re
  import shlex
  import sys
  import pkg_resources
  from setuptools import setup, Extension, Distribution, find_namespace_packages
  from Cython.Distutils import build_ext
  import Cython
label_desc: Use image node_id 2 for calling a global function with example usage: strtobool(val) and returns: int, int