040000 tree b1a939f45e9e878b6142b6272dc0d405911eb709	check
040000 tree 6ff3fbbea146c683ff38af209d59ca30a2c9fff9	examples
040000 tree 419158798693661a9fe3855d1887df52e757ee43	fixedbugs
100644 blob 25e6f22f94b7336cd60ae59e226f047856476e01	manual.go2