use std::marker::PhantomData;
use vecdb::UnaryTransform;
pub struct MapOption<F>(PhantomData<F>);
impl<F, S, T> UnaryTransform<Option<S>, Option<T>> for MapOption<F>
where
F: UnaryTransform<S, T>,
{
#[inline(always)]
fn apply(value: Option<S>) -> Option<T> {
value.map(F::apply)
}
}