fix: fix example function bug in function package

function/function.go

@@ -145,14 +145,6 @@ func unsafeInvokeFunc(fn any, args ...any) []reflect.Value {
 	return fv.Call(params)
 }
 
-func functionValue(function any) reflect.Value {
-	v := reflect.ValueOf(function)
-	if v.Kind() != reflect.Func {
-		panic(fmt.Sprintf("Invalid function type, value of type %T", function))
-	}
-	return v
-}
-
 func mustBeFunction(function any) {
 	v := reflect.ValueOf(function)
 	if v.Kind() != reflect.Func {

function/function_example_test.go

@@ -108,21 +108,21 @@ func ExampleDebounced() {
 }
 
 func ExampleSchedule() {
-	var result []string
+	count := 0
 
-	appendFn := func(s string) {
+	increase := func() {
-		result = append(result, s)
+		count++
 	}
 
-	stop := Schedule(1*time.Second, appendFn, "*")
+	stop := Schedule(1*time.Second, increase)
 
 	time.Sleep(3 * time.Second)
 	close(stop)
 
-	fmt.Println(result)
+	fmt.Println(count)
 
 	// Output:
-	// [* * *]
+	// 3
 }
 
 func ExamplePipeline() {