content: from dash import Dash, Input, Output, html
  
  import time
  
  from tests.background_callback.utils import get_background_callback_manager
  
  background_callback_manager = get_background_callback_manager()
  handle = background_callback_manager.handle
  
  app = Dash(__name__, background_callback_manager=background_callback_manager)
  app.layout = html.Div(
      [
          html.Button(id="button-1", children="Click Here", n_clicks=0),
          html.Div(id="status", children="Finished"),
          html.Div(id="result", children="Not clicked"),
      ]
  )
  
  
  @app.callback(
      Output("result", "children"),
      [Input("button-1", "n_clicks")],
      running=[(Output("status", "children"), "Running", "Finished")],
      interval=500,
      prevent_initial_call=True,
      background=True,
  )
  def update_output(n_clicks):
      time.sleep(2)
      return f"Clicked {n_clicks} time(s)"
  
  
  if __name__ == "__main__":
      app.run(debug=True)
  