Are you familiar with the decorator pattern concept and have you used it in your projects?

The decorator pattern is a structural design pattern that allows adding new responsibilities to objects dynamically by wrapping them in other decorator objects.

In Python, decorators are often implemented as functions or classes that take a function or object and return an extended version with additional behavior.

Example of a simple function decorator:

def decorator(func):
    def wrapper(*args, **kwargs):
        print("Before calling the function")
        result = func(*args, **kwargs)
        print("After calling the function")
        return result
    return wrapper

@decorator
def say_hello():
    print("Hello!")

say_hello()

In projects, I have used decorators for logging, access control, caching function results, and other tasks where it is necessary to add functionality without modifying the original code of the function or class.