pub trait ChildViewWatcherProxyInterface: Send + Sync {
type GetStatusResponseFut: Future<Output = Result<ChildViewStatus, Error>> + Send;
type GetViewRefResponseFut: Future<Output = Result<ViewRef, Error>> + Send;
// Required methods
fn get_status(&self) -> Self::GetStatusResponseFut;
fn get_view_ref(&self) -> Self::GetViewRefResponseFut;
}