pub trait SignalWrite<T> {
// Required methods
fn id(&self) -> Id;
fn try_write(&self) -> Option<WriteRef<'_, T>>
where T: 'static;
// Provided method
fn write(&self) -> WriteRef<'_, T>
where T: 'static { ... }
}pub trait SignalWrite<T> {
// Required methods
fn id(&self) -> Id;
fn try_write(&self) -> Option<WriteRef<'_, T>>
where T: 'static;
// Provided method
fn write(&self) -> WriteRef<'_, T>
where T: 'static { ... }
}