cargo fix & fix heroledger

heromodels/examples/postgres_example/example.rs

@@ -43,8 +43,10 @@ fn main() {
     // Clean up any existing data to ensure consistent results
     println!("Cleaning up existing data...");
     let user_collection = db.collection::<User>().expect("can open user collection");
-    let comment_collection = db.collection::<Comment>().expect("can open comment collection");
-    
+    let comment_collection = db
+        .collection::<Comment>()
+        .expect("can open comment collection");
+
     // Clear all existing users and comments
     if let Ok(existing_users) = user_collection.get_all() {
         for user in existing_users {