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040000 tree 27f188b9a08a26c67a287f0b12dff732ec946d84	builtin
040000 tree 10b41015786f4bc77911c28c2140d052f590a008	datagen
040000 tree 3f4b2f2aa6ac083d36675da45172e00a8e0f639e	nn
040000 tree 10274d4115cb1a24c51a69e8c49d288bbfda38c8	perftest
040000 tree 93cb93c9b0243a624c7d85c37ef1139062346e1a	staging
040000 tree ffe9f91fb96647fd216245b43c07ef9d940343e8	utils