Access Parent Schema Value inside Repeater - Filament

I am trying to access field_1 value inside the repeater

return $form->schema([
    Select::make('field_1')->reactive()->options(['a','b','c']),
    Repeater::make('repeater_1')->schema([
        TextInput::make('field_2')->default(fn (Closure $get) => $get('field_1')),
    ]),
]);