code: def test_issue249():
      df = pd.DataFrame(
          data=[[1], [2]], index=["foo", 1], columns=["a"]
      )
      report = ProfileReport(df, explorative=True, progress_bar=False)
      assert type(report.config.title) == str
      assert len(report.to_html()) > 0
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_issue249() without return types