redis/hkeys

const app = mvfm(prelude, redis);
const prog = app({}, ($) => {
  return $.begin(
    $.redis.hset("user:1", { name: "Alice", email: "alice@example.com" }),
    $.redis.hkeys("user:1")
  );
});
await fold(
  defaults(app, { redis: memoryRedisInterpreter }),
  prog
);