code: def load_jupyter_server_extension(app):
      warnings.warn(
          "Using ipyparallel.nbextension as server extension is deprecated in IPython Parallel 7.0. Use top-level ipyparallel.",
          DeprecationWarning,
      )
      from ipyparallel import _load_jupyter_server_extension
  
      return _load_jupyter_server_extension(app)
  
label_desc: Use image node_id 1 for calling a global function with example usage: load_jupyter_server_extension(app) and returns: _load_jupyter_server_extension