def cbc.iv
import bend-osdev-cbc@0.1.0.0/cbc.bend as Cbcimport Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B
import bend-osdev-mode-core@0.1.0.0/mode_core.bend as M
64def cbc.iv(o: B.Octets) -> Result<&2, &2, M.CmError, M.CmBlock>:
65 +xs = B.Octets.to_list(o)
66 M.cm.need_block(xs, M.CmBadIvLength{B.len(xs)})