code: def init_package(path=None, name='manage'):
      
      if path is None:
          manager = sys.modules[name]
          init_package(manager.__path__, name)
          return
  
      if isinstance(path, str):
          init_package([path], name)
          return
  
      for module_info in pkgutil.walk_packages(path, f'{name}.'):
          if not module_info.ispkg:
              importlib.import_module(module_info.name)
docs: Initialize (import) the submodules, and recursively the
      subpackages, of a "manage" package at ``path``.
  
      ``path`` may be specified as either a system directory path or a
      list of these.
  
      If ``path`` is unspecified, it is inferred from the already-imported
      "manage" top-level module.