pub trait HangingDataChannelProxyInterface: Send + Sync {
type ReadResponseFut: Future<Output = Result<HangingDataChannelReadResult, Error>> + Send;
type WriteResponseFut: Future<Output = Result<HangingDataChannelWriteResult, Error>> + Send;
// Required methods
fn read(&self) -> Self::ReadResponseFut;
fn write(
&self,
payload: &HangingDataChannelWriteRequest,
) -> Self::WriteResponseFut;
}