import { type Spy } from "https://deno.land/x/rimbu@1.2.0/spy/spy.ts";
const { Cls } = Spy;
The resulting tuple type of the Spy.cls function containing the resulting spy class, and the
metadata object containing extra information about the created instances.
definition: Construct<A, Spy.ClsObj<I, A>> & Spy.ClsMeta<I, A>