code: def run(self):
      # Run all relevant sub-commands.  This will be some subset of:
      #  - build_py      - pure Python modules
      #  - build_clib    - standalone C libraries
      #  - build_ext     - Python extensions
      #  - build_scripts - (Python) scripts
      for cmd_name in self.get_sub_commands():
          self.run_command(cmd_name)
  
file_path: catboost/contrib/tools/python3/src/Lib/distutils/command/build.py
imports: import sys, os
  from distutils.core import Command
  from distutils.errors import DistutilsOptionError
  from distutils.util import get_platform
label_desc: Use image node_id 3 for calling the build obj's underlying member method code with example usage: obj.run() without return types