code: def run(self):
      if BUILT_EXTENSIONS:
          INCLUDE_DIRS.append(EIGEN3_INCLUDE_DIR)
          LIBRARY_DIRS.append(BUILD_DIR + "/dynet/")
      log.info("Building Cython extensions...")
      log.info("INCLUDE_DIRS=%r" % " ".join(INCLUDE_DIRS))
      log.info("LIBRARIES=%r" % " ".join(LIBRARIES))
      log.info("LIBRARY_DIRS=%r" % " ".join(LIBRARY_DIRS))
      log.info("COMPILER_ARGS=%r" % " ".join(COMPILER_ARGS))
      log.info("EXTRA_LINK_ARGS=%r" % " ".join(EXTRA_LINK_ARGS))
      log.info("RUNTIME_LIB_DIRS=%r" % " ".join(RUNTIME_LIB_DIRS))
      _build_ext.run(self)
      if os.path.abspath(".") != SCRIPT_DIR:
          log.info("Copying built extensions...")
          for d in os.listdir("build"):
              target_dir = os.path.join(SCRIPT_DIR, "build", d)
              rmtree(target_dir, ignore_errors=True)
              try:
                  copytree(os.path.join("build", d), target_dir)
              except OSError as e:
                  log.info(
                      "Cannot copy %s %s"
                      % (os.path.join("build", d), e)
                  )
  
imports: import distutils.sysconfig
  import logging
  import platform
  import zipfile
  import sys
  from distutils.command.build import build
  from distutils.command.build_py import build_py
  from distutils.command.install_data import install_data
  from distutils.errors import DistutilsSetupError
  from distutils.spawn import find_executable
  from distutils.sysconfig import get_python_lib
  from multiprocessing import cpu_count
  from subprocess import Popen
  import os
  import re
  from Cython.Distutils import build_ext
  from setuptools import setup
  from setuptools.extension import Extension
  from shutil import rmtree, copytree, copy
  import urllib
label_desc: Use image node_id 1 for calling the build_ext obj's underlying member method code with example usage: obj.run() without return types