That's just sample code. Actual docs look something like https://developer.apple.com/library/content/documentation/Miscellaneous/Conceptual/MetalProgrammingGuid

That's just sample code. Actual docs look something like https://developer.apple.com/library/content/documentation/Miscellaneous/Conceptual/MetalProgrammingGuide/Device/Device.html#//apple_ref/doc/uid/TP40014221-CH2-SW1 https://developer.apple.com/library/content/documentation/Mi...