tickname(i) = ticktype[i + 1]

const ticktype = ["BID_SIZE",                  #   0
                  "BID",                       #   1
                  "ASK",                       #   2
                  "ASK_SIZE",                  #   3
                  "LAST",                      #   4
                  "LAST_SIZE",                 #   5
                  "HIGH",                      #   6
                  "LOW",                       #   7
                  "VOLUME",                    #   8
                  "CLOSE",                     #   9
                  "BID_OPTION",                #  10
                  "ASK_OPTION",                #  11
                  "LAST_OPTION",               #  12
                  "MODEL_OPTION",              #  13
                  "OPEN",                      #  14
                  "LOW_13_WEEK",               #  15
                  "HIGH_13_WEEK",              #  16
                  "LOW_26_WEEK",               #  17
                  "HIGH_26_WEEK",              #  18
                  "LOW_52_WEEK",               #  19
                  "HIGH_52_WEEK",              #  20
                  "AVG_VOLUME",                #  21
                  "OPEN_INTEREST",             #  22
                  "OPTION_HISTORICAL_VOL",     #  23
                  "OPTION_IMPLIED_VOL",        #  24
                  "OPTION_BID_EXCH",           #  25
                  "OPTION_ASK_EXCH",           #  26
                  "OPTION_CALL_OPEN_INTEREST", #  27
                  "OPTION_PUT_OPEN_INTEREST",  #  28
                  "OPTION_CALL_VOLUME",        #  29
                  "OPTION_PUT_VOLUME",         #  30
                  "INDEX_FUTURE_PREMIUM",      #  31
                  "BID_EXCH",                  #  32
                  "ASK_EXCH",                  #  33
                  "AUCTION_VOLUME",            #  34
                  "AUCTION_PRICE",             #  35
                  "AUCTION_IMBALANCE",         #  36
                  "MARK_PRICE",                #  37
                  "BID_EFP_COMPUTATION",       #  38
                  "ASK_EFP_COMPUTATION",       #  39
                  "LAST_EFP_COMPUTATION",      #  40
                  "OPEN_EFP_COMPUTATION",      #  41
                  "HIGH_EFP_COMPUTATION",      #  42
                  "LOW_EFP_COMPUTATION",       #  43
                  "CLOSE_EFP_COMPUTATION",     #  44
                  "LAST_TIMESTAMP",            #  45
                  "SHORTABLE",                 #  46
                  "FUNDAMENTAL_RATIOS",        #  47
                  "RT_VOLUME",                 #  48
                  "HALTED",                    #  49
                  "BID_YIELD",                 #  50
                  "ASK_YIELD",                 #  51
                  "LAST_YIELD",                #  52
                  "CUST_OPTION_COMPUTATION",   #  53
                  "TRADE_COUNT",               #  54
                  "TRADE_RATE",                #  55
                  "VOLUME_RATE",               #  56
                  "LAST_RTH_TRADE",            #  57
                  "RT_HISTORICAL_VOL",         #  58
                  "IB_DIVIDENDS",              #  59
                  "BOND_FACTOR_MULTIPLIER",    #  60
                  "REGULATORY_IMBALANCE",      #  61
                  "NEWS_TICK",                 #  62
                  "SHORT_TERM_VOLUME_3_MIN",   #  63
                  "SHORT_TERM_VOLUME_5_MIN",   #  64
                  "SHORT_TERM_VOLUME_10_MIN",  #  65
                  "DELAYED_BID",               #  66
                  "DELAYED_ASK",               #  67
                  "DELAYED_LAST",              #  68
                  "DELAYED_BID_SIZE",          #  69
                  "DELAYED_ASK_SIZE",          #  70
                  "DELAYED_LAST_SIZE",         #  71
                  "DELAYED_HIGH",              #  72
                  "DELAYED_LOW",               #  73
                  "DELAYED_VOLUME",            #  74
                  "DELAYED_CLOSE",             #  75
                  "DELAYED_OPEN",              #  76
                  "RT_TRD_VOLUME",             #  77
                  "CREDITMAN_MARK_PRICE",      #  78
                  "CREDITMAN_SLOW_MARK_PRICE", #  79
                  "DELAYED_BID_OPTION",        #  80
                  "DELAYED_ASK_OPTION",        #  81
                  "DELAYED_LAST_OPTION",       #  82
                  "DELAYED_MODEL_OPTION",      #  83
                  "LAST_EXCH",                 #  84
                  "LAST_REG_TIME",             #  85
                  "FUTURES_OPEN_INTEREST",     #  86
                  "AVG_OPT_VOLUME",            #  87
                  "DELAYED_LAST_TIMESTAMP",    #  88
                  "SHORTABLE_SHARES"]          #  89
