040000 tree 366d4ad530f01cfe30d40a55900c445d625cb51e	allopen
040000 tree 43dbf78cab94a9693729e6117ffb93dc414a00be	noarg
040000 tree 8c6c52d12b62dbeb26047b0b43f55d7124f76dbc	sam_with_receiver
040000 tree 897de33e69d304883a7d0972dd9b7f1aa4a5da4a	serialization