def gz.fstr.at
import bend-kit-zlib@0.5.1.0/zlib.bend as Zlibimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
586def gz.fstr.at(m: Maybe<&2, U32>, b: Bytes.Bytes) -> Bytes.Bytes & Maybe<&2, U32>:
587 match m:
588 case None{}:
589 (b, None{})
590 case Some{+off}:
591 gz.zero(Bytes.find.from(b, SCon{Chr{0}, SNil{}}, off))