code: def get_extensions():
      ext_modules = [
          Extension(
              "pyfftw.pyfftw",
              sources=[os.path.join("pyfftw", "pyfftw.pyx")],
          )
      ]
      return ext_modules
  
imports: from setuptools import setup, Command
  from setuptools.command.build_ext import build_ext
  from sysconfig import get_platform
  from contextlib import redirect_stderr, redirect_stdout
  import os
  import logging
  import platform
  import sys
  import versioneer
label_desc: Use image node_id 6 for calling a global function with example usage: get_extensions() and returns: ext_modules