def hdr.check
import bend-kit-tar@0.3.0.0/tar.bend as Tarimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
350def hdr.check(+len: U32, +i: U32, +sum: U32, r: Array<U32> & U32 & Bool) -> Bytes.Bytes & Maybe<&2, Hdr>:
351 (a, ck, ok) = r
352 hdr.ck2(len, i, sum, ck, ok, Array.get(U32, a, ((i >> 2n) + 37 : U32)))