Scan.two.rejoin: def of bend-parallel@0.1.0.0
Import: import bend-parallel@0.1.0.0/scan.bend as Scan
Lines 96-99 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=96&end_line=99

import Base

# A leaf's spare handles, joined back after its work.
def two.rejoin(a2: Array<U32>, s2: Array<U32>, r: Two) -> Two:
  Two{a, s} = r
  Two{Array.join(U32, a, a2), Array.join(U32, s, s2)}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.join
  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