import { type EveryIsNever } from "https://deno.land/x/deepmergets@v7.0.1/src/types/utils.ts";
Returns whether or not all the given types are never.
definition: Ts extends readonly [infer Head, ...infer Rest] ? IsNever<Head> extends true ? Rest extends ReadonlyArray<unknown> ? EveryIsNever<Rest> : true : false : true