human
Solve the following python programming problem given the following code:
def test_each_list(self) : 
    def eachTest(val, * args) : 
        self.eachList.append ((val + 1)) 
_ ([1, 2, 3, 4]).each (eachTest) 
    self.assertEqual ([2, 3, 4, 5], self.eachList, 'each for lists did not work for all') 
    self.eachList = [] 
    _ ([1, 2, 3, 4]).forEach (self) 
    self.assertEqual ([2, 3, 4, 5], self.eachList, 'forEach for lists did not work for all') 

    
    

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

_ ([1, 2, 3, 4]).forEach (eachTest)