def when_open
import bend-collections-laws-crypto@1.0.0.0/src/crypto/aead/chacha20poly1305.bend as Chacha20poly1305import Base
93def when_open(ok: Bool, r: Maybe<&2, List<&2, U32>>) -> Maybe<&2, List<&2, U32>>:
94 match ok:
95 case True{}: r
96 case False{}: None{}