def read_blob.slice
import bend-kit-protobuf@0.2.0.0/protobuf.bend as Protobufimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as B
136def read_blob.slice(pos: U32, start: U32, end: U32, r: B.Bytes & B.Bytes) -> Result<&2, &1, Error, B.Cursor & B.Bytes>:
137 (b, part) = r
138 Done{(B.Cursor{b, pos, start, end}, part)}