code: def test_inin017_late_component_register(dash_duo):
      app = Dash()
  
      app.layout = html.Div(
          [
              html.Button("Click me to put a dcc ", id="btn-insert"),
              html.Div(id="output"),
          ]
      )
  
      @app.callback(
          Output("output", "children"),
          [Input("btn-insert", "n_clicks")],
      )
      def update_output(value):
          if value is None:
              raise PreventUpdate
  
          return dcc.Input(id="inserted-input")
  
      dash_duo.start_server(app)
  
      btn = dash_duo.find_element("#btn-insert")
      btn.click()
  
      dash_duo.find_element("#inserted-input")
  
imports: import datetime
  import flask
  import json
  import pytest
  import re
  from bs4 import BeautifulSoup
  import dash_dangerously_set_inner_html
  import dash_flow_example
  import dash
  from dash import Dash, html, dcc, Input, Output
  from dash.exceptions import PreventUpdate
  from dash.testing.wait import until
label_desc: Use image node_id 9 for calling a global function with example usage: test_inin017_late_component_register(dash_duo) and returns: dcc