code: def test_directory_with_static(self) -> None:
      doc = Document()
      result: dict[str, Handler] = {}
  
      def load(filename: str):
          handler = bahd.DirectoryHandler(filename=filename)
          result["handler"] = handler
          handler.modify_document(doc)
          if handler.failed:
              raise RuntimeError(handler.error)
  
      with_directory_contents(
          {
              "main.py": "# This script does nothing",
              "static/js/foo.js": "# some JS",
          },
          load,
      )
  
      assert not doc.roots
  
      handler = result["handler"]
      assert handler.static_path() is not None
      assert handler.static_path().endswith("static")
  
imports: from __future__ import annotations
  import pytest
  from typing import TYPE_CHECKING
  import jinja2
  from bokeh.core.templates import FILE
  from bokeh.document import Document
  from tests.support.util.filesystem import with_directory_contents
  import bokeh.application.handlers.directory
label_desc: Use image node_id 9 for calling the Test_DirectoryHandler obj's underlying member method code with example usage: obj.test_directory_with_static() without return types