def last16
import bend-osdev-legacy-ciphers@0.1.0.0/check.bend as Checkimport Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
186def last16(r: Result<&2, &2, M.CmError, B.Octets>) -> String:
187 match r:
188 case Fail{e}:
189 "fail"
190 case Done{+o}:
191 B.Octets.hex(B.Octets.drop(Nat.sub(B.Octets.len(o), 16n), o))