def hex
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/sha/packed/core_model.bend as CoreModelimport Base
686def hex(ws: List<&2, U32>) -> String:
687 match ws:
688 case Nil{}:
689 ""
690 case w <> t:
691 hex_word(w) ++ hex(t)