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040000 tree 04fe5e3d83f322918843c54f9fd2c5913c3def35	freertos
040000 tree a0b1057afde483744e60ba801a62afbfea3d8fc8	nanopb
040000 tree 41bfec7f05271c7ade8d41c6979dcd9c6c9075f7	threadx