Помогите с этим кодом про силы функций. (пожалуйста)

 def transforming(matrix, *args, not_transform=(), **kwargs): 
    def apply_transformations(element): 
        for func_name, indices in args: 
            if func_name in kwargs: 
                func = kwargs[func_name] 
                if func_name not in not_transform: 
                    for index in indices: 
                        element[index] = func(element[index]) 
        return element 
 
    return [apply_transformations(row) for row in matrix] 
 
initial_matrix = [ 
    [1, 2, 3], 
    [4, 5, 6], 
    [7, 8, 9] 
] 
 
def square(x): 
    return x ** 2 
 
def double(x): 
    return x * 2 
 
transformed_matrix = transforming(initial_matrix, ('square', (0, 2)), ('double', (1,)), not_transform=('double',), square=square, double=double) 
 
print(transformed_matrix)