def keep
import bend-kit-multipart@0.3.0.0/multipart.bend as Multipartimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
352# b as (all but its last k bytes, its last k bytes).
353def keep(b: Bytes.Bytes, +k: U32) -> Bytes.Bytes & Bytes.Bytes:
354 keep.of(k, Bytes.length(b))