Topology.min_link2: def of bend-prot@0.1.0.0
Import: import bend-prot@0.1.0.0/topology.bend as Topology
Lines 138-144 of bend-prot@0.1.0.0/topology.bend: https://jend.leeeet.dev/read.txt?path=bend-prot@0.1.0.0/topology.bend&start_line=138&end_line=144

import Base
import bend-prot@0.1.0.0/protein.bend as P

# Closest squared approach between two atom sets. None{} when either is empty.
def min_link2(xs: List<&2, P.Atom>, +ys: List<&2, P.Atom>) -> Maybe<&2, F32>:
  match xs:
    case Nil{}:
      None{}
    case h <> t:
      min_maybe(min_link2(t, ys), head_link(h, ys))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/protein.bend&name=Atom
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/topology.bend&name=head_link
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/topology.bend&name=min_maybe