class_docstr: A PEP 302 meta path importer for finding optionally-vendored
  or otherwise naturally-installed packages from root_name.
class_docstr_tok: ["A","PEP","302","meta","path","importer","for","finding","optionally-vendored","or","otherwise","naturally-installed","packages","from","root_name","."]
code: def __init__(self, root_name, vendored_names=(), vendor_pkg=None):
      self.root_name = root_name
      self.vendored_names = set(vendored_names)
      self.vendor_pkg = vendor_pkg or root_name.replace(
          "extern", "_vendor"
      )
  
file_path: catboost/contrib/python/setuptools/py3/setuptools/extern/__init__.py
imports: import importlib.util
  import sys
label_desc: Use image node_id 1 to create a new VendorImporter object  with example: obj = VendorImporter(root_name, vendored_names, vendor_pkg)