import { type AssertMessageFactory } from "https://deno.land/x/unknownutil@v3.7.0/util.ts";
definition: (x: unknown, pred: Predicate<unknown>) => string
x/unknownutil/util.ts>AssertMessageFactory
import { type AssertMessageFactory } from "https://deno.land/x/unknownutil@v3.7.0/util.ts";