code: def _rpath_base():
      if PLATFORM_LINUX:
          return "$ORIGIN"
      else:
          raise Exception("not supported on this platform")
  
imports: import copy
  from distutils import ccompiler
  from distutils import sysconfig
  import os
  import shutil
  import sys
  import setuptools
  import cupy_builder.install_build
  from cupy_builder._context import Context
  from cupy_builder.install_build import PLATFORM_LINUX
  from cupy_builder.install_build import PLATFORM_WIN32
label_desc: Use image node_id 8 for calling a global function with example usage: _rpath_base() and returns: str