Get the push notification token - iOS 10, Swift 3

Question

How to get the device token from new xCode 8, Swift 3 in iOS 10?

Here is the code to register notification:

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Answer 1

The below snnipet is working with Eric Aya solution :

let token = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})

Thanks for all help :)