def rs.disc
import bend-osdev-cipher-modes@0.1.0.0/PROOF.bend as PROOFimport Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
1725def rs.disc(r: Result<&2, &2, M.CmError, Unit>) -> Type:
1726 match r:
1727 case Fail{e}:
1728 Unit
1729 case Done{u}:
1730 Empty