Pinescript

I made a code in Pinescript I would like to copy in NT8 and add some deltas to it.

It's simple coding, 4 lines of codes, pretty basic ones. What is the delivery time?

Bond chart - ZB value= security("ZN1!*3-ZB1!", timeframe. period, close) period = input(10) bull = value[0] > lowest(nz(value[1]), period) and close[0] < lowest(nz(close[1]), period) bear = value[0] < highest(nz(value[1]), period) and close[0] > highest(nz(close[1]), period) bull1 = BarDelta[0] < MIN(period)[1] bear1 = BarDelta[0] > MAX(period)[1] plot arrows --> This is really the basics. Showing a divergence between price on the chart and custom value. I'm using MAX and MIN in NT8, but something is wrong and therefor not plotting right.

I believe because custom value asset (in this case ZN1!*3-ZB1!). Therefor I need help with this. Let me know

Thanks.