TRANS_ATTR_RESERVED = 0
TRANS_ATTR_HIDDEN = 1
TRANS_ATTR_DISPLY = 2
TRANS_ATTR_SIZEINCREMENT = 3
TRANS_ATTR_POST = 4
TRANS_ATTR_PRICEINCREMENT = 5
TRANS_ATTR_OFFSET = 6
TRANS_ATTR_STOP_MKT = 7
TRANS_ATTR_STOP_LMT = 8
TRANS_ATTR_PEG = 9
TRANS_ATTR_TSL = 10
TRANS_ATTR_TSM = 11
