code: def __init__(self, name, sourcedir=""):
      Extension.__init__(self, name, sources=[])
      self.sourcedir = os.path.abspath(sourcedir)
  
file_path: neoml/NeoML/Python/setup.py
imports: import os
  import sys
  import subprocess
  import re
  from setuptools import setup, Extension, find_packages
  from setuptools.command.build_ext import build_ext
label_desc: Use image node_id 1 to create a new CMakeExtension object from inherited base classes: Extension with example: obj = CMakeExtension(name, sourcedir)