text: import dash
  import dash_labs as dl
  
  from dash import html, dcc
  from dash.long_callback import DiskcacheLongCallbackManager
  from dash.dependencies import Input, Output
  
  ## Diskcache
  import diskcache
  
  cache = diskcache.Cache("./cache")
  long_callback_manager = DiskcacheLongCallbackManager(cache)
  import time
  
  app = dash.Dash(__name__, plugins=[dl.plugins.pages])
  
  navbar = html.Div(
      [
          html.Div(dcc.Link(page["name"], href=page["path"]))
          for page in dash.page_registry.values()
      ],
      style={"backgroundColor": "whitesmoke", "padding": 10},
  )
  
  app.layout = html.Div(
      [navbar, html.Hr(), dl.plugins.page_container],
  )
  
  
  @app.long_callback(
      output=Output("paragraph_id", "children"),
      inputs=Input("button_id", "n_clicks"),
      manager=long_callback_manager,
      prevent_initial_call=True,
  )
  def callback(n_clicks):
      time.sleep(2.0)
      return [f"Clicked {n_clicks} times"]
  
  
  if __name__ == "__main__":
      app.run_server(debug=True)
  