I am not seeing any arrows even in input after changing the parameter true

arrows appear when the trend changes directly in the intersection of the lines on the first tick, it's made for instant alerts . if you make a permanent display of arrows , they show up late after 1-2 candles . The same arrows then removed , that would not clog the screen. And in fact, arrows are not necessary , as the intersection of the lines is the change in the trend.

arrows appear, check for M1.