code: def walk_revctrl(dirname=""):
      """Find all files under revision control"""
      for ep in metadata.entry_points(group="setuptools.file_finders"):
          for item in ep.load()(dirname):
              yield item
  
imports: from distutils import log
  import distutils.command.sdist
  import os
  import sys
  import contextlib
  from itertools import chain
  from .._importlib import metadata
  from .build import _ORIGINAL_SUBCOMMANDS
label_desc: Use image node_id 1 for calling a global function with example usage: walk_revctrl(dirname) without return types