def heads.cut
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
506def heads.cut(+j: U32, r: Bytes.Bytes & Bytes.Bytes, out: List<&1, Item>) -> Step:
507 (buf, block) = r
508 heads.item(head.parse(Bytes.to_string(block)), drop(buf, (j + 4 : U32)), out)