040000 tree ce7f6f4b6c19bf9ed92750102067e538f25452ae	check
040000 tree 115da8452b4442b247937802656f9c4e714a51c0	examples
040000 tree 92ac9fc350cd9561e35e7bbc3ed938910b8efe74	fixedbugs
100644 blob 25e6f22f94b7336cd60ae59e226f047856476e01	manual.go2