Correct the indentation of an empty line

app-proto/src/engine.rs

@@ -403,7 +403,7 @@ pub fn realize_gram(
         );
         return Realization { result, history }
     }
-
+    
     // find the dimension of the search space
     let element_dim = guess.nrows();
     let total_dim = element_dim * assembly_dim;