class Foo

	def main is shared
		a = Foo()
		b = Foo()
		
		assert a is b
		assert a is not b
		assert a == b
		assert a <> b
		
		assert a < b  # .error. cannot be compared

	def bar
		num = 1 to dynamic?
		print num to IComparable
		print num to IComparable < 2  # .error. cannot be compared