code: def test_custom_classification_dashboard(
      dash_duo, precalculated_rf_classifier_explainer
  ):
      custom_instance = CustomDashboard(
          precalculated_rf_classifier_explainer, name="custom"
      )
      db = ExplainerDashboard(
          precalculated_rf_classifier_explainer,
          [custom_instance, CustomDashboard],
          title="testing",
          responsive=False,
      )
      dash_duo.start_server(db.app)
      dash_duo.wait_for_text_to_equal("h1", "testing", timeout=30)
      assert (
          dash_duo.get_logs() == []
      ), "browser console should contain no error"
  
imports: import pytest
  from explainerdashboard import ExplainerDashboard
  from explainerdashboard.custom import *
label_desc: Use image node_id 1 for calling a global function with example usage: test_custom_classification_dashboard(dash_duo, precalculated_rf_classifier_explainer) without return types