I know it's possible to fast-charge the new iPad Pros using Apple's 29w USB-C charging brick and Apple's Lightning-to-USB-C cable. But is it also possible to fast-charge the new iPad Pros by connecting them to a USB-C ports on a late-2016/mid-2017 MBP? Are the USB-C ports on the new MBPs capable of fast-charging devices, if the appropriate cable is used?