How to use the icecream.ic.enable function in icecream

def testEnableDisable(self):
        with disableColoring(), captureStandardStreams() as (out, err):
            assert ic(a) == 1
            assert ic.enabled

            ic.disable()
            assert not ic.enabled
            assert ic(b) == 2

            ic.enable()
            assert ic.enabled
            assert ic(c) == 3

        pairs = parseOutputIntoPairs(out, err, 2)
        assert pairs == [[('a', '1')], [('c', '3')]]