--- exercises/088_async4.zig	2026-04-06 12:22:06.643385622 +0200
+++ answers/088_async4.zig	2026-04-06 12:22:11.820491035 +0200
@@ -38,7 +38,7 @@
 
     // Wait for all tasks to finish.
     // What Group method blocks until all tasks complete?
-    try group.???(io);
+    try group.await(io);
 
     print("All tasks finished!\n", .{});
 }