<div dir="ltr">Documentation says what it checks for item to respond to specific selectors. There are no selectors in Swift, so new implementation should check for protocol conformance instead, I guess. Any ideas? Should new protocol be introduced?<div><br></div><div>Class reference:  <a href="https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSArray_Class/#//apple_ref/occ/instm/NSArray/descriptionWithLocale:indent">https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSArray_Class/#//apple_ref/occ/instm/NSArray/descriptionWithLocale:indent</a>:</div></div>