code: def finalize_options(self):
      if self.distribution.ext_modules:
          nthreads = getattr(
              self, "parallel", None
          )  # -j option in Py3.5+
          nthreads = int(nthreads) if nthreads else None
          from Cython.Build.Dependencies import cythonize
  
          self.distribution.ext_modules[:] = cythonize(
              self.distribution.ext_modules,
              nthreads=nthreads,
              force=self.force,
          )
      super(new_build_ext, self).finalize_options()
  
imports: import sys
  from .old_build_ext import old_build_ext
label_desc: Use image node_id 1 for calling the new_build_ext obj's underlying member method code with example usage: obj.finalize_options() without return types