able to parse xml

internal/entity/iter.go

@@ -0,0 +1,28 @@
+package entity
+
+func IterWithErr[T any](t []T, err error) iterWithErr[T] {
+	return iterWithErr[T]{
+		items: t,
+		err:   err,
+	}
+}
+
+type iterWithErr[T any] struct {
+	items []T
+	err   error
+}
+
+func (iter iterWithErr[T]) Do(f func(T) error) error {
+	if iter.err != nil {
+		return iter.err
+	}
+
+	for _, item := range iter.items {
+		err := f(item)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}