/// <summary>
 /// Removes the specified symbols to the subscription
 /// </summary>
 /// <param name="job">Job that's being processed processing.</param>
 /// <param name="symbols">The symbols to be removed keyed by SecurityType</param>
 public virtual void Unsubscribe(LiveNodePacket job, IEnumerable <Symbol> symbols)
 {
     _api.LiveUnsubscribe(symbols);
 }