def b0
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/random/bytes.bend as Bytesimport Base
import bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend as W
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/random.bend as SCR
53# the eight bytes of a word, split at the first
54def b0(x: W.U64) -> U32:
55 match x:
56 case W.U64{+l, +h}:
57 SCR.byte_of(l, 0n)