actually support synchronization

src/operation.rs

@@ -1,8 +1,9 @@
 use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use uuid::Uuid;
 
-#[derive(PartialEq, Clone, Debug)]
+#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
 pub enum Operation {
     Create {
         uuid: Uuid,