pub trait BoxExt: Sized {
type Output: ?Sized;
// Required method
fn emplace<Init: EmplaceInitializer<Output = Self::Output>>(
init: Init
) -> Self;
}pub trait BoxExt: Sized {
type Output: ?Sized;
// Required method
fn emplace<Init: EmplaceInitializer<Output = Self::Output>>(
init: Init
) -> Self;
}