code: def test_rdps010_toggle_persistence(dash_duo):
      def make_input(persistence):
          return dcc.Input(
              id="persisted", value="a", persistence=persistence
          )
  
      app = Dash(__name__)
      app.layout = html.Div(
          [
              dcc.Input(id="persistence-val", value=""),
              html.Div(make_input(""), id="persisted-container"),
              html.Div(id="out"),
          ]
      )
  
      @app.callback(
          Output("persisted-container", "children"),
          [Input("persistence-val", "value")],
      )
      def set_persistence(val):
          return make_input(val)
  
      @app.callback(
          Output("out", "children"), [Input("persisted", "value")]
      )
      def set_out(val):
          return val
  
      dash_duo.start_server(app)
  
      dash_duo.wait_for_text_to_equal("#out", "a")
      dash_duo.find_element("#persisted").send_keys("lpaca")
      dash_duo.wait_for_text_to_equal("#out", "alpaca")
  
      dash_duo.find_element("#persistence-val").send_keys("s")
      dash_duo.wait_for_text_to_equal("#out", "a")
      dash_duo.find_element("#persisted").send_keys("nchovies")
      dash_duo.wait_for_text_to_equal("#out", "anchovies")
  
      dash_duo.find_element("#persistence-val").send_keys("2")
      dash_duo.wait_for_text_to_equal("#out", "a")
      dash_duo.find_element("#persisted").send_keys(
          Keys.BACK_SPACE
      )  # persist falsy value
      dash_duo.wait_for_text_to_equal("#out", "")
  
      # alpaca not saved with falsy persistence
      dash_duo.clear_input("#persistence-val")
      dash_duo.wait_for_text_to_equal("#out", "a")
  
      # anchovies and aardvark saved
      dash_duo.find_element("#persistence-val").send_keys("s")
      dash_duo.wait_for_text_to_equal("#out", "anchovies")
      dash_duo.find_element("#persistence-val").send_keys("2")
      dash_duo.wait_for_text_to_equal("#out", "")
  
imports: from multiprocessing import Value
  import pytest
  import time
  from selenium.webdriver.common.keys import Keys
  import dash
  from dash import Dash, Input, Output, State, MATCH, dcc, html, dash_table
  from dash_test_components import MyPersistedComponent
  from dash_test_components import MyPersistedComponentNested
label_desc: Use image node_id 16 for calling a global function with example usage: test_rdps010_toggle_persistence(dash_duo) and returns: dcc, make_input, val