Trait Error: The 'children' trait of a VBox instance ...

Beginner Questions
1

I am getting the error:
TraitError: The 'children' trait of a VBox instance contains an Instance of a TypedTuple which expected a Widget, not the Viewer at '0x2aaab5d0ad00'.

when running the code below in Jupyter Lab

import itkwidgets
import ipywidgets
    
view = itkwidgets.view(geometries=None, background=[0.0, 0.0, 0.0])

# Headings
heading = ipywidgets.HTML(value="<h1>Heading</h1>")

# Output Widget
widget = ipywidgets.VBox(children = [heading, view])

Below are my versions of packages.

itkwidgets 1.0a16 pypi_0 pypi
ipywidgets 7.6.5 pyhd3eb1b0_1 defaults

When running this locally with

itkwidgets 0.32.0 py38h32f6830_0 conda-forge

this error does not occur. I needed to update to latest itkwidgets version due to issue with widgets not showing in Jupyter Lab. How can I fix this issue.

Not sure if it matters, but in my application, I will be updating the geometries variable often.

2

@PaulHax might be able to help.

3

Seems with the 1.X version of itkwidgets is not a Widget, probably by design/not-gotten-around-to-it. Deep insight, I know. I would open a question/feature-request issue at:

4

Thanks for that @PaulHax. I have opened an issue (Trait Error: The ‘children’ trait of a VBox instance ... itkwidgets 1.0a16 · Issue #556 · InsightSoftwareConsortium/itkwidgets · GitHub).
Would I be able to wrap this viewer in an Output or something to be able to get a work around?