EMPTY_KEY
import { EMPTY_KEY } from "https://raw.githubusercontent.com/aaronhuggins/cbor-redux/0c8b3f4fa619fee986dd91e254d999fc9cfd396e/mod.ts";
A symbol which is emitted by the reviver
and replacer
functions when a value is not associated with a key or CBOR label.
const EMPTY_KEY: symbol;