code: def _load_webgl_backend(ipython):
      
  
      from .. import app
      app_instance = app.use_app("ipynb_webgl")
  
      if app_instance.backend_name == "ipynb_webgl":
          ipython.write("Vispy IPython module has loaded successfully")
      else:
          # TODO: Improve this error message
          ipython.write_err("Unable to load webgl backend of Vispy")
docs: Load the webgl backend for the IPython notebook