pub trait OptionWatcherProxyInterface: Send + Sync {
type ProbeResponseFut: Future<Output = Result<(), Error>> + Send;
type WatchOptionsResponseFut: Future<Output = Result<(Vec<OptionWatchEntry>, u32), Error>> + Send;
// Required methods
fn probe(&self) -> Self::ProbeResponseFut;
fn watch_options(&self) -> Self::WatchOptionsResponseFut;
}