/* tests data packing and unpacking */ struct msg { string from_name = 1; string to_name = 2; optional struct[kill] attack = 3; array struct[run] run = 4; } struct kill { string weapon = 0x10121; string action = 2; optional int how_often = 3; } struct run { string how = 1; optional bytes some_bytes = 2; bytes fixed_bytes[24] = 3; }