code: def get_ext_built_api_header(self, name):
      if sys.platform == "win32":
          head, tail = os.path.split(name)
          return pjoin(head, tail + "_api.h")
      else:
          return pjoin(name + "_api.h")
  
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 9 for calling the build_ext obj's underlying member method code with example usage: obj.get_ext_built_api_header(name) and returns: pjoin, pjoin