Dtcprotocol_piqi.Market_data_update_tradetype t = {mutable symbol_id : Dtcprotocol_piqi.uint32 option; |
mutable at_bid_or_ask : Dtcprotocol_piqi.at_bid_or_ask_enum option; |
mutable price : Dtcprotocol_piqi.float64 option; |
mutable volume : Dtcprotocol_piqi.float64 option; |
mutable date_time : Dtcprotocol_piqi.float64 option; |
}