human
Solve the following python programming problem given the following code:
def test_groupdisposable_addafterdispose() : 
    disp1 = [False] 
    disp2 = [False] 
    def action1() : 
        disp1 [0] = True 
d1 = Disposable (action1) 
    def action2() : 
        disp2 [0] = True 
d2 = Disposable (action2) 
    g = CompositeDisposable (d1) 
    assert (disp1.length == 1) 
    g.dispose () 
    assert disp1 [0] 
    assert (g.length == 0) 
    g.add (d2) 
    assert disp2 [0] 
    assert (g.length == 0) 

    
    

    Fix the buggy line: assert (disp1.length == 1)
assistant
#Here is Python code to fix the buggy line: assert (disp1.

assert (g.length == 1)