GODT-1815: Combined/Split mode

internal/user/types.go

@@ -0,0 +1,13 @@
+package user
+
+import "reflect"
+
+func mapTo[From, To any](from []From) []To {
+	to := make([]To, 0, len(from))
+
+	for _, from := range from {
+		to = append(to, reflect.ValueOf(from).Convert(reflect.TypeOf(to).Elem()).Interface().(To))
+	}
+
+	return to
+}