import { type dom } from "https://deno.land/x/evt@v2.5.6/lib/types/index.ts";
const { IDBKeyRange } = dom;
A key range can be a single value or a range with upper and lower bounds or endpoints. If the key range has both upper and lower bounds, then it is bounded; if it has no bounds, it is unbounded. A bounded key range can either be open (the endpoints are excluded) or closed (the endpoints are included). To retrieve all keys within a certain range, you can use the following code constructs: