pub trait SampleProxyInterface: Send + Sync {
    type CommitResponseFut: Future<Output = Result<SampleCommitResult, Error>> + Send;
    // Required methods
    fn set(&self, sample_parameters: &SampleParameters) -> Result<(), Error>;
    fn commit(
        &self,
        sink: ClientEnd<SampleSinkMarker>,
    ) -> Self::CommitResponseFut;
}