040000 tree 3acf3d993fcb305a293ce672f593b0afcac3289d	concepts
040000 tree 9c111858af29a4efdf5c638471b42b0df749c231	format
040000 tree 9bdcafc94e785e734fc9e915a9b6fcce8344f4e2	memory
040000 tree c2227a3f2c00223cbc8c4c3e1016a06ca546e9e7	ranges
040000 tree fa6801b30779da3d05899848b8805d01621fa9f0	simd
040000 tree 3813934e34ae20d4a12417dfe37012c3ccf83ecd	text_encoding
040000 tree 1316c1a6facb2b975ff34d09521b7a4f785073e8	time