interface dom.PerformanceMark
implements PerformanceEntry
import { type dom } from "https://deno.land/x/evt@v2.4.16/lib/types/index.ts";
const { PerformanceMark } = dom;
PerformanceMark is an abstract interface for PerformanceEntry objects with an entryType of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.