040000 tree 52252c37cf5d5c62d2270057e8077b25fdd1ed30	csf_examples
040000 tree 7db454ea4891f31715d8fec7ddc6182fa89b3be0	guides
100644 blob 82ddec13eb43d69d11a1615314b70275b6789a35	introduction_ahab.txt