introduced benchmarks on publishing messages

wrappers.go

@@ -9,3 +9,8 @@ func Forever[T any](fn func(T)) Subscriber[T] {
 		return true
 	}
 }
+
+// NoOp creates a sbscriber that does absolutely nothing forever. This is mostly useful for testing.
+func NoOp[T any]() Subscriber[T] {
+	return func(_ T) bool { return true }
+}