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040000 tree a55ce77071b57357eb7f9b769cb4f85acb57b82f	descriptor
040000 tree ba9c124437287e8df86fd93506b3a357cf810e25	factory
040000 tree a92851a752c3dcd8c02a8b8addff4b75f7327a8e	internal
040000 tree c9aa5f8ecba77419a2afebcc67b0fea9e37c3e49	pipeline
040000 tree d0c4b37fe68fbf9917e26897792da21846928f3a	testing
040000 tree c4af3b85df9cf79b154f5dfa554654cc16256ecd	util