Disclosure: DefineComponent<
    ExtractPropTypes<
        { defaultOpen: { default: boolean; type: BooleanConstructor } },
    >,
    () => VNode<RendererNode, RendererElement, { [key: string]: any }>,
    {},
    {},
    {},
    ComponentOptionsMixin,
    ComponentOptionsMixin,
    {},
    string,
    PublicProps,
    ToResolvedProps<
        ExtractPropTypes<
            { defaultOpen: { default: boolean; type: BooleanConstructor } },
        >,
        {},
    >,
    { defaultOpen: boolean },
    {},
    {},
    {},
    string,
    ComponentProvideOptions,
    true,
    {},
    any,
> = ...

A single expandable section. Native <details> handles open/close; the enhancer only matters for a mutually-exclusive group.