code: def test_dvui006_no_undo_redo(dash_duo):
      app = Dash(__name__)
      app.layout = html.Div([dcc.Input(id="a"), html.Div(id="b")])
  
      @app.callback(Output("b", "children"), Input("a", "value"))
      def set_b(a):
          return a
  
      dash_duo.start_server(app)
  
      dash_duo.find_element("#a").send_keys("xyz")
  
      dash_duo.wait_for_text_to_equal("#b", "xyz")
      dash_duo.wait_for_no_elements("._dash-undo-redo")
  
file_path: dash/tests/integration/devtools/test_devtools_ui.py
imports: from time import sleep
  import flask
  from dash import Dash, Input, Output, dcc, html
  import dash.testing.wait
  from dash_test_components import WidthComponent
  from tests.assets.todo_app import todo_app
label_desc: Use image node_id 6 for calling a global function with example usage: test_dvui006_no_undo_redo(dash_duo) and returns: a