def ob_byte_at
import gralha-byte-words@0.1.0.0/words.bend as Wordsimport Base
283def ob_byte_at(st: Sink, +b: U32) -> Sink:
284 match st:
285 case Sink{a, cap, pos}:
286 +p = pos
287 ob_or(Array.get(U32, a, (p >> 2n : U32)), cap, p, b)