Are Google Cloud Messaging tokens unique?

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Tags

1. #first
2. #process
3. #obtains
4. #tokens
5. #answers
6. #cloud
7. #messaging
8. #verify
9. #result
10. #register
11. #which
12. #receive
13. #google
14. #messages
15. #unique
16. #search
17. #documentation
18. #token
19. #client
20. #registration