040000 tree 288b7be0b954759d08b16c643b7e5bd31d476ecb	alpha_test
040000 tree 4aac63a890e6b49da8161566a55c40e39039549b	beta_test
100644 blob 14b047259a4d0836c705974dc5ff2b3e372d71e9	skerr.go
100644 blob 81c283a2a12dcf3830d6a66331b5e60c33094370	skerr_test.go