def append_lines
import bend-prot@0.1.0.0/pdb.bend as Pdbimport Base
581def append_lines(a: List<&2, String>, b: List<&2, String>) -> List<&2, String>:
582 match a:
583 case Nil{}:
584 b
585 case h <> t:
586 h <> append_lines(t, b)