👉 The term "extensiveness" refers to a feature that allows an object, function or class to extend its functionality beyond what it was originally designed for. This means that when an extensible object is created, it can be extended in various ways, such as by adding new methods, attributes, properties, and so on. For example, consider the following code: ```python class Person: def __init__(self): self.name = "John Doe" def greet(self):
