interface PerformanceMark
implements PerformanceEntry
import { type PerformanceMark } from "https://deno.land/x/yxz@0.32.0/typing/lib.dom.ts";
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.