human
Solve the following python programming problem given the following code:
def decorator_with_introspection(func) : 
    '
    Given a function and a decorator
    (a function with a function as an argument that returns a wrapped/wrapper function),
    apply the decorator to the function (i.e. return the decorated function)
    without affecting the ability to perform introspection on the original function, i.e. check its name,
    signature (argument count), source, etc.
    ' 
    def decorator(function) : 
        def double_wrapper(* args) : 
            return (function (* args) * 2) 
return double_wrapper 
def function_with_a_name(a, b, c, d) : 
        return (((a + b) + c) + d) 
wrapped = func (function_with_a_name, decorator) 
    assertEqual (wrapped (1, 2, 3, 4), 20) 
    assertEqual (decorator.__name__, 'function_with_a_name') 
    assertEqual (wrapped.func_code.co_argcount, 4) 
    assertIn ('# insert comment here', inspect.getsource (wrapped)) 

    
    

    Fix the buggy line: assertEqual (decorator.__name__, 'function_with_a_name')
assistant
#Here is Python code to fix the buggy line: assertEqual (decorator.

assertEqual (wrapped.__name__, 'function_with_a_name')