public OHLCVol(decimal open, decimal high, decimal low, decimal close, int volume = 0, int precision = 6)
{
_ohlc = new OHLC(open, high, low, close, precision);
_volume = volume;
}
public OHLCVol(Price open, Price high, Price low, Price close, int volume = 0)
{
_ohlc = new OHLC(open, high, low, close);
_volume = volume;
}