package node;

@:jsRequire("node:perf_hooks") @valueModuleOnly extern class NodePerf_hooks {
	/**
		_This property is an extension by Node.js. It is not available in Web browsers._
		
		Creates an `IntervalHistogram` object that samples and reports the event loop
		delay over time. The delays will be reported in nanoseconds.
		
		Using a timer to detect approximate event loop delay works because the
		execution of timers is tied specifically to the lifecycle of the libuv
		event loop. That is, a delay in the loop will cause a delay in the execution
		of the timer, and those delays are specifically what this API is intended to
		detect.
		
		```js
		const { monitorEventLoopDelay } = require('node:perf_hooks');
		const h = monitorEventLoopDelay({ resolution: 20 });
		h.enable();
		// Do something.
		h.disable();
		console.log(h.min);
		console.log(h.max);
		console.log(h.mean);
		console.log(h.stddev);
		console.log(h.percentiles);
		console.log(h.percentile(50));
		console.log(h.percentile(99));
		```
	**/
	static function monitorEventLoopDelay(?options:node.perf_hooks.EventLoopMonitorOptions):node.perf_hooks.IntervalHistogram;
	/**
		Returns a `RecordableHistogram`.
	**/
	static function createHistogram(?options:node.perf_hooks.CreateHistogramOptions):node.perf_hooks.RecordableHistogram;
	static final performance : node.perf_hooks.Performance;
}