618     pub struct ReadOnly<T: ?Sized> {  struct
621         inner: T,
624     impl<T> ReadOnly<T> {  implementation
640     impl<T: ?Sized> ReadOnly<T> {  impl
705     impl<T: ?Sized> SizeEq<T> for ReadOnly<T> {  implementation
712 unsafe impl<T: ?Sized> TransmuteFrom<T, Valid, Valid> for ReadOnly<T> {}  implementation
718 impl<'a, T: ?Sized + Immutable> From<&'a T> for &'a ReadOnly<T> {  implementation
729 impl<T: ?Sized + Immutable> Deref for ReadOnly<T> {  implementation
739 impl<T: ?Sized + Immutable> DerefMut for ReadOnly<T> {  implementation
746 impl<T: ?Sized + Immutable + Debug> Debug for ReadOnly<T> {  implementation
754 unsafe impl<T: HasTag + ?Sized> HasTag for ReadOnly<T> {  implementation
797 unsafe impl<T, Field, const VARIANT_ID: i128, const FIELD_ID: i128>
825 unsafe impl<T, Field, I, const VARIANT_ID: i128, const FIELD_ID: i128>