040000 tree b90d696e46a13f57536e6c563d7f8464cb8fc1b1	check
040000 tree 3505f76d93b1e70d2b48a1c1589e79de736e2254	examples
040000 tree a3c70580f86c459661a507292d7d3e0f337c95cf	fixedbugs
100644 blob efe13cf8bc56c170d2a232230521b79e995bdc1b	manual.go2
040000 tree 08a27d606d5a58e4c8ba71bf12b909e241492215	spec