code: def test_tabs004_without_value(dash_dcc):
      app = Dash(__name__)
  
      app.layout = html.Div(
          [
              html.H1("Dash Tabs component demo"),
              dcc.Tabs(
                  id="tabs-without-value",
                  children=[
                      dcc.Tab(label="Tab One", value="tab-1"),
                      dcc.Tab(label="Tab Two", value="tab-2"),
                  ],
              ),
              html.Div(id="tabs-content"),
          ]
      )
  
      @app.callback(
          Output("tabs-content", "children"),
          [Input("tabs-without-value", "value")],
      )
      def render_content(tab):
          if tab == "tab-1":
              return html.H3("Default selected Tab content 1")
          elif tab == "tab-2":
              return html.H3("Tab content 2")
  
      dash_dcc.start_server(app)
      dash_dcc.wait_for_text_to_equal(
          "#tabs-content", "Default selected Tab content 1"
      )
      assert dash_dcc.get_logs() == []
  
imports: from dash import Dash, Input, Output, dcc, html
label_desc: Use image node_id 4 for calling a global function with example usage: test_tabs004_without_value(dash_dcc) and returns: html, html