human
Solve the following python programming problem given the following code:
@ run_in_both (Node, "['null', 17, 27, 18, 28, 'null', 29, 'null']") 
def test_dynamism4(Node) : 
    n = Node () 
    n1 = Node () 
    n2 = Node () 
    res = [] 
    def func(* events) : 
        for ev in events : 
            if isinstance (ev.new_value, (float, int)) : 
                res.append (ev.new_value) 
else : 
                res.append ('null') 
handler = n.connect (func, 'children.*.val') 
    n.children = (n1, res) 
    n.val = 42 
    handler.handle_now () 
    n1.val = 17 
    n2.val = 27 
    handler.handle_now () 
    n1.val = 18 
    n2.val = 28 
    handler.handle_now () 
    n.children = (n2,) 
    handler.handle_now () 
    n1.val = 19 
    n2.val = 29 
    handler.handle_now () 
    n.children = () 
    handler.handle_now () 
    n1.val = 11 
    n2.val = 21 
    handler.handle_now () 
    return res 

    
    

    Fix the buggy line: n.children = (n1, res)
assistant
#Here is Python code to fix the buggy line: n.

n.children = (n1, n2)