Possible to extract selected items in a combox?

Been trying to create a Solara component with reacton.ipyvuetify elements. Essentially a Combobox in which I eventually want to be able to select items and dynamically store them in a variable - or store them at the click of a button.

I tried this but got stuck:

import solara as s
import reacton.ipyvuetify as v

items = "item1 item2 item3".split()
chips = s.reactive([items[0]])

@s.component
def Page():

    def on_change(widget, event, data):
        chips.set([???])

    with s.ColumnsResponsive(10, large=[6,6]):
        cb = v.Combobox(
            solo_inverted=True,
            background_color="success",
            solo=True,
            items=items,
            chips=True,
            deletable_chips=True,
            multiple=True,
            autofocus=True,
            prepend_inner_icon="mdi-filter-variant",
            placeholder="Select relevant items",
        )

        btn = v.Btn(children=['CHECK'])
        v.use_event(btn, 'click', on_change)
        s.Markdown(f"Selected: {chips.value}")

The example using v.Combobox, v.Btn, and v.use_event is the entry point. Trace how the combobox exposes its selected values to the on_change callback, then verify that the selected items can update chips and appear in the rendered Markdown. Done means the example reliably displays the selected items after selection or button activation.