code: def check_header(self, header):
      return self._check_compiler_flag(
          "-include {header}".format(header=header)
      )
  
imports: import shutil
  import os
  from setuptools import Extension, setup
  import contextlib
  import io
  import os.path
  import json
  import tempfile
  from setuptools.command.build_ext import build_ext, new_compiler
  from Cython.Build import cythonize
  import subprocess
  import sys
  import platform
  import numpy
label_desc: Use image node_id 5 for calling the ExtensionBuilder obj's underlying member method code with example usage: obj.check_header(header) and returns: self