We've already gone over how objects, or instances, are created from a class blueprint, and that all properties and methods belong to that particular instance. While this is great for object-oriented functionality, not all classes need to be instantiated, and not all properties need to belong to a specific instance. However, static classes are sealed, meaning they cannot be used in class inheritance.
Utility methods are a good case for this situation, where we don't necessarily care about instantiating a particular Utility class instance since all its methods wouldn't be dependent on a particular object. Your task is to create just such a utility method in a new script.