TWTY_INVALID = -1
TWTY_INT8 = 0
TWTY_INT16 = 1
TWTY_INT32 = 2
TWTY_UINT8 = 3
TWTY_UINT16 = 4
TWTY_UINT32 = 5
TWTY_BOOL = 6
TWTY_FIX32 = 7
TWTY_FRAME = 8
TWTY_STR32 = 9
TWTY_STR64 = 10
TWTY_STR128 = 11
TWTY_STR255 = 12
TWTY_STR1024 = 13
TWTY_UNI512 = 14