How to use the @effectful/es-persist-serialization.all function in @effectful/es-persist-serialization

if (!i.value) continue;
        if (i === main) {
          yield i.value;
        } else {
          if (i.value.type === "FLUSH") {
            if (i.value.awaiting) {
              i.value.awaiting.delete(i.key);
              if (i.value.awaiting.size) continue;
            }
            yield { type: "FLUSH" };
          } else yield { type: "ITEM", value: i.value, key: i.key };
        }
      }
    } finally {
      for (const i of threads.values()) i.source.stop();
      await R.all([...threads.values()].map(i => i.iter.return()));
    }
  };
}