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040000 tree e0b6363d5cc4ba58145383fce120964c22f1505b	network
040000 tree 175a31597f25f29b1ae8a6c55a4f83b4d9d0570d	storage
040000 tree 8b842052510006a90c8284b9d94561e16ff6caf2	util
040000 tree 1e9e3f700f8b8afed8a9561f51e93dcd6975ef10	vm