python/testData/inspections/PyTypeCheckerInspection/DecoratedFunction.py - platform/tools/idea - Git at Google

 def decorator(f):
     return f

 @decorator
 def foo():
     return 'foo'

 print(foo + 3) #pass
	def decorator(f):
	return f

	@decorator
	def foo():
	return 'foo'

	print(foo + 3) #pass