code: def _extract_entities(self, nodes):
      pass
  
imports: from collections import defaultdict, abc
  from typing import cast
  from docutils import nodes
  from docutils.parsers.rst import Directive
  import sphinx
  from sphinx.locale import _
  from sphinx.util.docutils import SphinxDirective
  from sphinx.errors import ExtensionError
  from conf import languages
label_desc: Use image node_id 5 for calling the AllEntities obj's underlying member method code with example usage: obj._extract_entities(nodes) without return types