def parse_pdb_group
import bend-prot@0.1.0.0/pdb.bend as Pdbimport Base
import bend-prot@0.1.0.0/protein.bend as P
429# Whole file -> (Complex, skipped lines).
430def parse_pdb_group(g: List<&2, U32> & List<&2, P.Residue>, n: Nat) -> P.Complex & Nat:
431 match g:
432 case (cs, rs):
433 (P.Complex{group_chains(cs, rs)}, n)