040000 tree 42907a2a8b13f8e46cd7ec818a564f525aa7871e	android
040000 tree 9be5f4424a82cb9462c3fc9ce5ff2eb9283a14dd	darwin
040000 tree ee63d3d6a19a777e7886530b503a2b1c8dba2b28	fuchsia
040000 tree d4424b4cc4c2805ebdb3f831c4309f056b6b2c58	linux
040000 tree d5b67c82c41b32a856d26f7d4166cf8b26dc2f3c	posix
040000 tree 3bc986da030c32d039fe4ba868c765ba5097ba78	win