code: def test_extra() -> None:
      extra = dict(foo="stuff", bar=10, baz=22.2)
      o = DummyOpts(extra)
      assert o.foo == "stuff"
      assert o.bar == 10
      assert extra == {"baz": 22.2}
  
file_path: bokeh/tests/unit/bokeh/util/test_options.py
imports: from __future__ import annotations
  import pytest
  from bokeh.core.properties import Int, Nullable, String
  from bokeh.util.options import Options
label_desc: Use image node_id 3 for calling a global function with example usage: test_extra() without return types