How to access $state inside a Repeater item ->collapsed()

public static function form(Form $form): Form
{
    return $form
        ->schema([

            // [...]

            Repeater::make('item')
                ->collapsible()
                ->relationship('items')
                ->schema([
                    TextInput::make('name')->required()->maxLength(255),
                    Toggle::make('done')->inline(false)->default(false),
                    RichEditor::make('description')->required(),
                ])
                ->itemLabel(fn (array $state): ?string => $state['name'] ?? null)
                ->collapsed(fn (array $state): bool => $state['done']), // THIS WON'T WORK. (I don't know how to access $state in collapsed)
        ]);

        // [...]
}