human
Solve the following python programming problem given the following code:
def test_map_list(self) : 
    def mapTest(val, * args) : 
        return (val * 2) 
map = _ ([1, 2, 3, 4]).map (map) 
    self.assertEqual ([2, 4, 6, 8], map, 'map for list did not work') 
    map = _ ([1, 2, 3, 4]).collect (mapTest) 
    self.assertEqual ([2, 4, 6, 8], map, 'collect for list did not work') 

    
    

    Fix the buggy line: map = _ ([1, 2, 3, 4]).map (map)
assistant
#Here is Python code to fix the buggy line: map = _ ([1, 2, 3, 4]).

map = _ ([1, 2, 3, 4]).map (mapTest)