040000 tree 1359d3ce1a79e6acee8047617816927e6dabcff7	autodiff
040000 tree dce58498a0f0f96d8627f4096be9d3aafa2e3ee2	operation
040000 tree 091a8f08678c63faf261f7b5df822ddb0e657d5a	schedule
100644 blob 18d4947cdddc648cda514b8d343044083a81fd41	tensor.cc