// فیلتر حجم volumeFilter = volume > ta.sma(volume, 10)
// سیگنال خرید و فروش buySignal = validOrderBlockLow and close < orderBlockLow and ta.crossover(close, orderBlockLow) and volumeFilter sellSignal = validOrderBlockHigh and close > orderBlockHigh and ta.crossunder(close, orderBlockHigh) and volumeFilter