def opt.str
import bend-kit-migrate@0.3.0.0/migrate.bend as Migrateimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
467def opt.str(m: Maybe<&1, Scalar>, k: Key) -> Result<&1, &1, Error, Maybe<&1, Bytes.Bytes>>:
468 match m:
469 case None{}:
470 Done{None{}}
471 case Some{SStr{b}}:
472 Done{Some{b}}
473 case Some{s}:
474 Fail{BadField{k}}