human
Solve the following python programming problem given the following code:
def test_ivar(self, space) : 
    w_res = space.execute ('
        class Float
          def set.
@foo = true.
end
          def get.
@foo.
end
        end
        float = 0.1
        res = [float.get]
        float.set
        res << float.get
        res << 0.2.get
        return res
        ') 
    assert (self.unwrap (self, w_res) == [None, True, None]) 

    
    

    Fix the buggy line: assert (self.unwrap (self, w_res) == [None, True, None])
assistant
#Here is Python program to fix the buggy line: assert (self.

assert (self.unwrap (space, w_res) == [None, True, None])