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// https://nodejs.org/api/perf_hooks.html
function panic() {  throw new Error(    `[esm.sh] "node:perf_hooks" is not supported in browser environment.`,  );}
export const performance = window.performance;export const PerformanceObserver = window.PerformanceObserver;export const PerformanceEntry = window.PerformanceEntry;export const PerformanceObserverEntryList = window.PerformanceObserverEntryList;
export class PerformanceNodeTiming extends PerformanceEntry {  constructor() {    panic();  }}
export class Histogram {  constructor() {    panic();  }}
export class IntervalHistogram extends Histogram {  constructor() {    panic();  }}
export class RecordableHistogram extends Histogram {  constructor() {    panic();  }}
export function createHistogram() {  panic();}
export function monitorEventLoopDelay() {  panic();}
export default {  performance,  PerformanceEntry,  PerformanceNodeTiming,  PerformanceObserver,  PerformanceObserverEntryList,  Histogram,  IntervalHistogram,  RecordableHistogram,  createHistogram,  monitorEventLoopDelay,};