Fix error

AY2324S1-CS2103T-W08-3 · Nov 13, 2023 · f96989a · f96989a
1 parent c98f20e
commit f96989a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
@@ -256,7 +256,7 @@ Autocompletion constraints are defined via the `AutocompleteConstraint<T>` funct
 ```java
 @FunctionalInterface
 public interface AutocompleteConstraint<T> {
-    boolean isAllowed(T input, Set<T> existingItems);
+    boolean isAllowed(T input, Set<? extends T> existingItems);
 }
 ```