pub trait KeyboardProxyInterface: Send + Sync {
type SetResponseFut: Future<Output = Result<KeyboardSetSetResult, Error>> + Send;
type WatchResponseFut: Future<Output = Result<KeyboardSettings, Error>> + Send;
// Required methods
fn set(&self, settings: &KeyboardSettings) -> Self::SetResponseFut;
fn watch(&self) -> Self::WatchResponseFut;
}