Protein.flatten_residues: def of bend-prot@0.1.0.0
Import: import bend-prot@0.1.0.0/protein.bend as Protein
Lines 115-120 of bend-prot@0.1.0.0/protein.bend: https://jend.leeeet.dev/read.txt?path=bend-prot@0.1.0.0/protein.bend&start_line=115&end_line=120

import Base

def flatten_residues(xs: List<&2, Residue>) -> List<&2, Atom>:
  match xs:
    case Nil{}:
      Nil{}
    case h <> t:
      flatten_res_extend(h, flatten_residues(t))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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/protein.bend&name=Residue
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/protein.bend&name=flatten_res_extend