code: def test_dddo002_array_comma_value(dash_dcc):
      app = Dash(__name__)
  
      dropdown = dcc.Dropdown(
          options=["New York, NY", "Montreal, QC", "San Francisco, CA"],
          value=["San Francisco, CA"],
          multi=True,
      )
      app.layout = html.Div(dropdown)
  
      dash_dcc.start_server(app)
  
      dash_dcc.wait_for_text_to_equal(
          "#react-select-2--value-0", "San Francisco, CA\n "
      )
  
      assert dash_dcc.get_logs() == []
  
imports: import time
  from selenium.webdriver.common.keys import Keys
  from dash import Dash, Input, Output, dcc, html
  from dash.exceptions import PreventUpdate
label_desc: Use image node_id 2 for calling a global function with example usage: test_dddo002_array_comma_value(dash_dcc) without return types