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040000 tree a5b6ba76e178465ac970ab48b9fe69f4f4c9db3e	common
040000 tree 59a2eaafbe043e9f44f71866ca1852fc7b7b0a63	example
040000 tree b655723c40c5262b39d5e14c0af3d0f0a5d44df7	ruby
040000 tree 9a640967ec4b7cd360bf2dc34b0bc47cea4d77d2	splash2
040000 tree a17ea0df84814fb8bccc9bef2d4af064e33a0174	topologies