docs: def go_offline(connected=None):
      """
      connected : bool
          If True, the plotly.js library will be loaded
          from an online CDN. If False, the plotly.js library will be loaded locally
          from the plotly python package
      """
      from .auth import get_config_file
      if connected is None:
          try:
              connected=True if get_config_file()['offline_connected'] is None else get_config_file()['offline_connected']
          except:
              connected=True
      if run_from_ipython():
          try:
              py_offline.init_notebook_mode(connected)
          except TypeError:
              #For older versions of plotly
              py_offline.init_notebook_mode()
          py_offline.__PLOTLY_OFFLINE_INITIALIZED=True