import { anyFunction } from "https://deno.land/x/unitest@v1.0.0-beta.82/mod.ts";
anyFunction() matches any function.
import {
anyFunction,
expect,
test,
} from "https://deno.land/x/unitest@$VERSION/mod.ts";
test("should be any function", () => {
expect(() => {}).toEqual(anyFunction());
});