public static void AddTag(GameObject obj, string tag) { obj.tag = tag; }In this example, we are defining a function called AddTag that accepts two parameters: a GameObject and a string representing the tag to assign to the object. We set the tag property of the GameObject to the value of the tag parameter. This code example is likely using the Unity package library, as GameObject is a class that is part of the Unity game engine. However, the AddTag function could also be used in other C# applications.