import { type Is } from "https://deno.land/x/deepmergets@v7.1.3/src/types/utils.ts";
Safely test whether or not the first given types extends the second.
Needed in particular for testing if a type is "never".
utils.ts
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T