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

def testMultipleArgumentsLongLineWrapped(self):
        # A single long line with multiple variables is line wrapped.
        val = '*' * int(ic.lineWrapWidth / 4)
        valStr = ic.argToStringFunction(val)

        v1 = v2 = v3 = v4 = val
        with disableColoring(), captureStandardStreams() as (out, err):
            ic(v1, v2, v3, v4)

        pairs = parseOutputIntoPairs(out, err, 4)
        assert pairs == [[(k, valStr)] for k in ['v1', 'v2', 'v3', 'v4']]

        lines = err.getvalue().splitlines()
        assert (
            lines[0].startswith(ic.prefix) and
            lines[1].startswith(' ' * len(ic.prefix)) and
            lines[2].startswith(' ' * len(ic.prefix)) and
            lines[3].startswith(' ' * len(ic.prefix)))