human
Solve the following python programming problem given the following code:
def test_groupdisposable_clear() : 
    disp1 = [False] 
    disp2 = [False] 
    def action1() : 
        disp1 [0] = True 
d1 = Disposable (action1) 
    def action2() : 
        disp2 [0] = True 
d2 = Disposable (action2) 
    g = CompositeDisposable (d1, d2) 
    assert (g.length == 2) 
    g.clear () 
    assert disp1 [0] 
    assert disp2 [0] 
    assert (not disp3.length) 
    disp3 = [False] 
    def action3() : 
        disp3 [0] = True 
d3 = Disposable (action3) 
    g.add (d3) 
    assert (not disp3 [0]) 
    assert (g.length == 1) 

    
    

    Fix the buggy line: assert (not disp3.length)
assistant
#Here is Python code to fix the buggy line: assert (not disp3.

assert (not g.length)