class_docstr: Generate list of classes supporting OpenLineage
code: def render_content(
      self,
      *,
      tags: set[str] | None,
      header_separator: str = DEFAULT_HEADER_SEPARATOR,
  ):
      return _render_openlineage_supported_classes_content()
  
file_path: airflow/docs/exts/providers_extensions.py
imports: from __future__ import annotations
  import ast
  import os
  from pathlib import Path
  from typing import Any, Iterable
  import yaml
  from provider_yaml_utils import get_provider_yaml_paths
  from docs.exts.operators_and_hooks_ref import DEFAULT_HEADER_SEPARATOR, BaseJinjaReferenceDirective, _render_template
label_desc: Use image node_id 1 for calling the OpenLineageSupportedClassesDirective obj's underlying member method code with example usage: obj.render_content() and returns: _render_openlineage_supported_classes_content