def x32.mid
import bend-kit-hash@0.3.0.2/hash.bend as Hashimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
490def x32.mid(+len: U32, r: Array<U32> & U32) -> Bytes.Bytes & U32:
491 (a, +h) = r
492 x32.rest(len, wfrom(~U32, ~x32.word, U32.to_nat(((len .&. 15) >> 2n : U32)), a, ((len >> 4n) << 2n : U32), (h + len : U32)))