pub trait RpcReqRes<Param, Res>: Debug + Send {
// Required methods
fn param(&self) -> &Param;
fn answer(&self, res: Result<Res, &str>);
}pub trait RpcReqRes<Param, Res>: Debug + Send {
// Required methods
fn param(&self) -> &Param;
fn answer(&self, res: Result<Res, &str>);
}