Camber.groups.prepared: def of bend-kit-camber@0.15.0.1
Import: import bend-kit-camber@0.15.0.1/camber.bend as Camber
Lines 575-580 of bend-kit-camber@0.15.0.1/camber.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-camber@0.15.0.1/camber.bend&start_line=575&end_line=580

import Base

def groups.prepared(~P: Data, plans: List<&2, GroupPlan<P>>, +ids: List<&2, U32>) -> List<&2, P>:
  match plans:
    case Nil{}:
      Nil{}
    case GroupPlan{here, policies} <> rest:
      groups.select(~P, groups.equal(here, ids), policies, u => groups.prepared(~P, rest, ids))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-kit-camber@0.15.0.1/camber.bend&name=GroupPlan
  https://jend.leeeet.dev/definition.txt?path=bend-kit-camber@0.15.0.1/camber.bend&name=groups.equal
  https://jend.leeeet.dev/definition.txt?path=bend-kit-camber@0.15.0.1/camber.bend&name=groups.select