1. This my part of code from xyz.cs.
public void AddVolume(double price, long volume, TradeSide side, DateTime time, int barIdx) { if (ladder.Count == 0) { Begin = time; BeginBarIdx = barIdx; } End = time; EndBarIdx = barIdx; AddVolume(price, volume, side); close[barIdx] = price; } // } //newly added public long GetPOCVolume() => ladder.Max(kv => kv.Value); //the above line getting class member declaratione expected and ; expected => here public long GetPOCVolume(TradeSide side) => ladderBidAsk[(int)side].Max(kv => kv.Value);//identifier expected here public long Volume() => ladder.Sum(kv => kv.Value);//invali token ) class struct and the interface public bool IsEmpty() => ladder.Count == 0;//invalid token => class struct ad interface declaratione
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