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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { notImplemented } from "./_utils.ts";
const { PerformanceObserver, PerformanceEntry, performance: shimPerformance } =  globalThis as typeof globalThis & {    PerformanceEntry: PerformanceEntry;    // deno-lint-ignore no-explicit-any    PerformanceObserver: any;  };const constants = {};
const performance:  & Omit<    Performance,    "clearMeasures" | "getEntries" | "getEntriesByName" | "getEntriesByType"  >  & {    // deno-lint-ignore no-explicit-any    eventLoopUtilization: any;    nodeTiming: Record<string, string>;    // deno-lint-ignore no-explicit-any    timerify: any;    // deno-lint-ignore no-explicit-any    timeOrigin: any;  } = {    clearMarks: (markName: string) => shimPerformance.clearMarks(markName),    eventLoopUtilization: () =>      notImplemented("eventLoopUtilization from performance"),    mark: (markName: string) => shimPerformance.mark(markName),    measure: (      measureName: string,      startMark?: string | PerformanceMeasureOptions,      endMark?: string,    ): PerformanceMeasure => {      if (endMark) {        return shimPerformance.measure(          measureName,          startMark as string,          endMark,        );      } else {        return shimPerformance.measure(          measureName,          startMark as PerformanceMeasureOptions,        );      }    },    nodeTiming: {},    now: () => shimPerformance.now(),    timerify: () => notImplemented("timerify from performance"),    // deno-lint-ignore no-explicit-any    timeOrigin: (shimPerformance as any).timeOrigin,  };
const monitorEventLoopDelay = () =>  notImplemented(    "monitorEventLoopDelay from performance",  );
export default {  performance,  PerformanceObserver,  PerformanceEntry,  monitorEventLoopDelay,  constants,};
export {  constants,  monitorEventLoopDelay,  performance,  PerformanceEntry,  PerformanceObserver,};