content: import sys
  
  import pytest
  
  from tests.background_callback.utils import setup_background_callback_app
  
  
  @pytest.mark.skipif(
      sys.version_info < (3, 7), reason="Python 3.6 long callbacks tests hangs up"
  )
  def test_lcbc010_side_updates(dash_duo, manager):
      with setup_background_callback_app(manager, "app_side_update") as app:
          dash_duo.start_server(app)
          dash_duo.find_element("#run-button").click()
          for i in range(1, 4):
              dash_duo.wait_for_text_to_equal("#side-status", f"Side Progress {i}/4")
  