code: def test_data() -> None:
      import bokeh.sampledata.sample_superstore as bss
  
      assert isinstance(bss.data, pd.DataFrame)
  
imports: from __future__ import annotations
  import pytest
  import pandas
  from tests.support.util.api import verify_all
label_desc: Use image node_id 1 for calling a global function with example usage: test_data() without return types