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/** | |
* We can use the Scala type system (with help from Miles Sabin's Shapeless | |
* library) to solve the bank account number validation problem in the second | |
* user story of the KataBankOCR kata on Coding Dojo: | |
* | |
* http://codingdojo.org/cgi-bin/wiki.pl?KataBankOCR | |
* | |
* By Travis Brown in response to a question by Paul Snively on the Shapeless | |
* Dev mailing list: | |
* |