pub trait Exists<T> {
// Required method
fn erase(self) -> Erased<T>;
}Expand description
The Exists trait is intended to be used with impl, to denote
an argument where the existence of a value is sufficient as an argument
pub trait Exists<T> {
// Required method
fn erase(self) -> Erased<T>;
}The Exists trait is intended to be used with impl, to denote
an argument where the existence of a value is sufficient as an argument