code: def generate_cython(package):
      """Cythonize all sources in the package"""
      cwd = os.path.abspath(os.path.dirname(__file__))
      print("Cythonizing sources")
      p = subprocess.call(
          [
              sys.executable,
              os.path.join(cwd, "tools", "cythonize.py"),
              package,
          ],
          cwd=cwd,
      )
      if p != 0:
          raise RuntimeError("Running cythonize failed!")
  
file_path: pyflux/setup.py
imports: import io
  import os
  import re
  import sys
  import subprocess
label_desc: Use image node_id 2 for calling a global function with example usage: generate_cython(package) without return types