pub trait StateProxyInterface: Send + Sync {
    type GetNetstackVersionResponseFut: Future<Output = Result<InEffectVersion, Error>> + Send;
    // Required method
    fn get_netstack_version(&self) -> Self::GetNetstackVersionResponseFut;
}pub trait StateProxyInterface: Send + Sync {
    type GetNetstackVersionResponseFut: Future<Output = Result<InEffectVersion, Error>> + Send;
    // Required method
    fn get_netstack_version(&self) -> Self::GetNetstackVersionResponseFut;
}