def test_contains_5(): assert contains((1,2), [1, 2, "3", (1,2)]) == True
def test_contains_4(): assert contains("item", ("item")) == False
def test_contains_2(): assert contains("18", [18, 18.0, "18"]) == True
def test_contains_3(): assert contains("element", []) == False
def test_contains_1(): assert contains([], [4, [], 5]) == True