Scan.sums.leaf.fin: def of bend-parallel@0.1.0.0
Import: import bend-parallel@0.1.0.0/scan.bend as Scan
Lines 104-106 of bend-parallel@0.1.0.0/scan.bend: https://jend.leeeet.dev/read.txt?path=bend-parallel@0.1.0.0/scan.bend&start_line=104&end_line=106

import Base

def sums.leaf.fin(+i: U32, s: Array<U32>, r: Array<U32> & U32) -> Two:
  (a, +v) = r
  Two{a, s[i] <- v}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.set
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-parallel@0.1.0.0/scan.bend&name=Two