040000 tree ae143231e0a2d20ae46296c580947d55a22e21cc	io
040000 tree 3433b84501f29c1da77e6d8687daadff82327b3c	logging
040000 tree 44899cc7fcf91f2b7bf47d485be6be7781ce4fe7	misc
040000 tree b68d21fd582c6a8e5c23d6fef0a882427631906c	quantization
040000 tree daa5ca77e76312382c4a099af9d282f24818dd31	strong_type