/// <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);
