//!
//! # Replica Messages
//!
//! Replicas are sent from SC to all live SPUs that participate in this replica group.
//! This message is sent for any changes in the live replica group.
//!
//! UPDATE/DEL operation is computed at sender by comparing KV notification with
//! internal metadata cache. Receiver translates UPDATE operations into an ADD/DEL
//! operation the comparing message with internal metadata.
//!
use SpuId;
use crate*;
use ;
pub type ReplicaMsg = ;
pub type ReplicaMsgs = ;
// -----------------------------------
// ReplicaMsg
// -----------------------------------