content: from dash import (
      Dash,
      Input,
      Output,
      html,
      clientside_callback,
  )
  
  
  def test_cmorsnu001_clientside_multiple_output_return_single_no_update(dash_duo):
      app = Dash(__name__)
      app.layout = html.Div(
          [
              html.Button("trigger", id="trigger-demo"),
              html.Div("demo1", id="output-demo1"),
              html.Div("demo2", id="output-demo2"),
          ],
          style={"padding": 50},
      )
  
      clientside_callback(
          """(n_clicks) => {
              try {
                  return window.dash_clientside.no_update;
              } catch (e) {
                  return [null, null];
              }
          }""",
          Output("output-demo1", "children"),
          Output("output-demo2", "children"),
          Input("trigger-demo", "n_clicks"),
          prevent_initial_call=True,
      )
  
      dash_duo.start_server(app)
  
      trigger_clicker = dash_duo.wait_for_element("#trigger-demo")
      trigger_clicker.click()
      dash_duo.wait_for_text_to_equal(
          "#output-demo1",
          "demo1",
      )
      dash_duo.wait_for_text_to_equal(
          "#output-demo2",
          "demo2",
      )
  