`ipywidgets version == 8.1.1` ```py import ipywidgets as w di = { "title": "title", "description": "Description ...", "tooltip": "tooltip ...", } w.VBox(**di) # error ```  --- ```py import ipywidgets as w di = { "title": "title", "description": "Description ...", #"tooltip": "tooltip ...", } w.VBox(**di) # instantiates normally ``` 