How to use the fileseq.exceptions.MaxSizeException function in Fileseq

def testMaxFrameSize(self):
        _maxSize = constants.MAX_FRAME_SIZE
        try:
            maxSize = constants.MAX_FRAME_SIZE = 500

            # Within range
            utils.xfrange(1, 100, 1, maxSize=-1)
            utils.xfrange(1, 100, 1, maxSize=100)
            FrameSet('1-%d' % maxSize)

            # Should not be allowed
            self.assertRaises(exceptions.MaxSizeException, utils.xfrange, 1, 100, 1, maxSize=50)
            self.assertRaises(exceptions.MaxSizeException, FrameSet, '1-%d' % (maxSize + 1))

            # Inverting would produce a huge new range
            fs = FrameSet('1,%d' % (maxSize + 3))
            self.assertRaises(exceptions.MaxSizeException, fs.invertedFrameRange)

        finally:
            constants.MAX_FRAME_SIZE = _maxSize

def testMaxFrameSize(self):
        _maxSize = constants.MAX_FRAME_SIZE
        try:
            maxSize = constants.MAX_FRAME_SIZE = 500

            # Within range
            utils.xfrange(1, 100, 1, maxSize=-1)
            utils.xfrange(1, 100, 1, maxSize=100)
            FrameSet('1-%d' % maxSize)

            # Should not be allowed
            self.assertRaises(exceptions.MaxSizeException, utils.xfrange, 1, 100, 1, maxSize=50)
            self.assertRaises(exceptions.MaxSizeException, FrameSet, '1-%d' % (maxSize + 1))

            # Inverting would produce a huge new range
            fs = FrameSet('1,%d' % (maxSize + 3))
            self.assertRaises(exceptions.MaxSizeException, fs.invertedFrameRange)

        finally:
            constants.MAX_FRAME_SIZE = _maxSize

Returns:
        generator:

    Raises:
        :class:`fileseq.exceptions.MaxSizeException`: if size is exceeded
    """
    if start <= stop:
        stop, step = stop + 1, abs(step)
    else:
        stop, step = stop - 1, -abs(step)

    if maxSize >= 0:
        size = lenRange(start, stop, step)
        if size > maxSize:
            raise exceptions.MaxSizeException(
                "Size %d > %s (MAX_FRAME_SIZE)" % (size, maxSize))

    # because an xrange is an odd object all its own, we wrap it in a
    # generator expression to get a proper Generator
    return (f for f in range(start, stop, step))

:class:`fileseq.exceptions.MaxSizeException`:
        """
        fail = False
        size = 0

        if isinstance(obj, numbers.Number):
            if obj > constants.MAX_FRAME_SIZE:
                fail = True
                size = obj

        elif hasattr(obj, '__len__'):
            size = len(obj)
            fail = size > constants.MAX_FRAME_SIZE

        if fail:
            raise MaxSizeException('Frame size %s > %s (MAX_FRAME_SIZE)'
                                   % (size, constants.MAX_FRAME_SIZE))