/// <summary> /// Track symbol. /// </summary> /// <param name="symbol">Symbol that needs to track.</param> /// <returns>Tracked order book if success else null. <see cref="OrderBook"/></returns> public OrderBook TrackSymbol(Symbol symbol) => Account.TrackSymbol(symbol, OnSpotPriceUpdated, OnOrderBookUpdated, OnOrderBookUpdatedList, OnOhlcvReceivedHandler, OnOrderBookConnectedHandler, OnOrderBookDisconnectedHandler, OnOrderBookReconnectedHandler);