human
I am working on the file "PySummary1.ipynb".
The first task is:
We also learned about decorator syntax.  Using a decorator, we're able to use a callable as an input to an object that provides a proxy output, likewise callable by the same name.
Can you write Python program for it?
assistant
#Here is the Python program you requested.

from functools import wraps

def decorator(f):
    @wraps(f)
    def proxy(x):
        # proxy
        print("Look at me!")
        return f(x)
    return proxy

@decorator
def Sqr(x):
    """Square Dancer"""
    return x * x

Sqr(10)