human
Solve the following python programming problem given the following code:
@ sig ((((H / 'a') >> ['a']) >> ['a'])) 
def intersperse(x, xs) : 
    "
    intersperse :: a -> [a] -> [a]

    The intersperse function takes an element and a list and `intersperses'
    that element between the elements of the list.
    " 
    def __intersperse(x, xs) : 
        for y in init (xs) : 
            (yield y) 
            (yield x) 
(yield last (xs)) 
if null (xs) : 
        return xs 
return L [__intersperse (xs, xs)] 

    
    

    Fix the buggy line: return L [__intersperse (xs, xs)]
assistant
#Here is Python program to fix the buggy line: return L [__intersperse (xs, xs)]
.

return L [__intersperse (x, xs)]