Function call_by::to_val

pub fn to_val<'a, T: By<'a, Val>>(by_val: T::Type) -> T

Safe, zero-cost cast from <T as By<'a, Val>>::Type to T.

Rust’s type system does not always know that <T as By<'a, Val>>::Type is T for all 'a. This function safely converts from the former to the latter.