#[cfg(feature = "alloc")]
pub extern crate alloc;
#[derive(Debug)]
pub struct Required<T>(pub core::marker::PhantomData<T>);
#[derive(Debug)]
pub struct Optional<T>(pub core::marker::PhantomData<Option<T>>);
impl<T> From<Optional<T>> for Set<Option<T>> {
#[inline(always)]
fn from(_: Optional<T>) -> Set<Option<T>> {
const { Set(None) }
}
}
#[repr(transparent)]
#[derive(Debug)]
pub struct Set<T>(pub T);