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import { DataBatcher } from "./mod.ts";
const example = { 1: "one", 3: "three" };
async function loadBatch(ids: [number]) {  // do some fancy work here to fetch all records with the given ids  // if record is not found for a given id, then return null, or if an error occurs  return ids.map(id => example[id] || null);}
async function saveBatch(writes: [any, any][]) {  // do something super fancy to perform the writes in batch  // Returning an Error if something goes wrong  return writes.map(([key, value]) => {    example[key] = value;  });}
async function run() {  const batcher = new DataBatcher(loadBatch, saveBatch);
  const loaded = await Promise.all([    batcher.load(1), // one    batcher.load(2), // null    batcher.load(3) // three  ]);   console.log(loaded); // one, null, three
  // Make change  await batcher.save(2, "TWO");
  // Load changed, note it is no longer null  console.log(await batcher.load(2)); // TWO}
run();