/notifications/mark_seen is fully implemented

src/data/notification.rs

@@ -153,6 +153,24 @@ pub struct Notification {
     pub container_type: Option<NotifElemType>,
 }
 
+impl Notification {
+    pub fn into_partial(self) -> PartialNotification {
+        PartialNotification {
+            id: Some(self.id),
+            time_create: Some(self.time_create),
+            seen: Some(self.seen),
+            from_user_id: Some(self.from_user_id),
+            dest_user_id: Some(self.dest_user_id),
+            on_elem_id: Some(self.on_elem_id),
+            on_elem_type: Some(self.on_elem_type),
+            kind: Some(self.kind),
+            visibility: Some(self.visibility),
+            container_id: self.container_id,
+            container_type: self.container_type,
+        }
+    }
+}
+
 pub struct PartialNotification {
     pub id: Option<u64>,
     pub time_create: Option<u64>,