def xseal
import bend-collections@1.0.0.0/src/crypto/aead/chacha20poly1305.bend as Chacha20poly1305import Base
77def xseal(+key: List<&2, U32>, +nonce: List<&2, U32>, +aad: List<&2, U32>, +pt: List<&2, U32>) -> List<&2, U32>:
78 seal(xkey(key, nonce), xnonce(nonce), aad, pt)