def envelope_ciphertext_valid
import qasim-bend-kit@0.1.0.2/libs/AES256GCM.bend as AES256GCMimport Base
161def envelope_ciphertext_valid(envelope: Envelope) ->
162 {bytes_valid(ciphertext(envelope)) == True{} : Bool}:
163 match envelope:
164 case Envelope{nonce, ciphertext, tag, valid}: valid