def b64.nsome
import bend-osdev-cipher-core@0.1.0.0/PROOF.bend as PROOFimport Base
import bend-osdev-cipher-core@0.1.0.0/cipher_core.bend as L
127def b64.nsome(+bl: L.LcBlock64, h: {None{} == Some{bl} : Maybe<&2, L.LcBlock64>}) -> Empty:
128 %h : b64.mdisc(_)
129 Unit{}