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040000 tree bf9f4d9b66febfbf8fd3c1ca690a296a8187d474	flate
040000 tree 4a7d05cd4d8e43d23ccfb5ab5ae98f7dcbc00208	gzip
040000 tree 297865038a665f216e96f67dbc236c655c6447c2	lzw
040000 tree 4feb2104978db36fe2312f6b9cddf9f898b28f74	testdata
040000 tree d612bbd081f0048d7780d8d276f12334bd7592ec	zlib