UniSize/MaximKornilov			UniSize/akozlov
f	1	def sizer(cls):	f	1	def sizer(cls):
	2			2
n	3	class getter:	n	3	class Descriptor:
	4			4
	5	def __get__(self, obj, cls):		5	def __get__(self, obj, cls):
	6			6
	7	if hasattr(obj, '__len__'):		7	if hasattr(obj, '__len__'):
	8	return len(obj)		8	return len(obj)
n	9		n
	10	if hasattr(obj, '__abs__'):		9	if hasattr(obj, '__abs__'):
	11	return abs(obj)		10	return abs(obj)
	12			11
	13	return 0		12	return 0
	14			13
n	15	class Sizer(cls):	n	14	cls.size = Descriptor()
	16			15
n	17	size = getter()	n	16	return cls
	18			17
t	19	return Sizer	t
	20

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