import sys
print(sys.version)
 
class Foo:
	""" A class """
	def bar():
		" Hello world "
		pass
 
 
print(Foo.__doc__)
print(Foo().__doc__)
print(Foo.bar.__doc__)
print(Foo().bar.__doc__)
 
from functools import wraps
def my_decorator(f):
    @wraps(f)
    def wrapper(*args, **kwds):
        print('Calling decorated function')
        return f(*args, **kwds)
    return wrapper
 
@my_decorator
def example():
    """Docstring"""
    print('Called example function')
print(example.__doc__)
 

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