Python 3.6: using type hints to describe a variable in the function argument list and the Quick Info of this variable display ‘unknown type’

[sarah17wu]

please check this link: https://stackoverflow.com/questions/44901572/intellisense-not-recognising-type-hinting-for-python-3?noredirect=1#comment76835268_44901572 for the detail information and screenshot, it is more intuitive, thanks in advance.
The question: the result in the firstly screenshot is correct and as expected?

[int19h]

The result is as expected currently, because PTVS does not yet support type hints to drive code completion. The following issue is tracking that feature: #82.