code: def test_jsons() -> None:
      for file in os.listdir(os.path.join(buc.bokehjs_dir, "js")):
          if file.endswith(".json"):
              with open(
                  os.path.join(buc.bokehjs_dir, "js", file),
                  encoding="utf-8",
              ) as f:
                  assert all("\\" not in mod for mod in json.load(f))
  
file_path: bokeh/tests/unit/bokeh/util/test_compiler.py
imports: from __future__ import annotations
  import pytest
  import json
  import os
  from unittest.mock import MagicMock, patch
  import bokeh.util.compiler
label_desc: Use image node_id 10 for calling a global function with example usage: test_jsons() without return types