Method newHttpMetric

packages/firebase-performance/common.ts:43–43

(url: string, httpMethod: HttpMethod)

	app: FirebaseApp;
	isPerformanceCollectionEnabled: boolean;
	newHttpMetric(url: string, httpMethod: HttpMethod): IHttpMetric;
	newTrace(identifier: string): ITrace;
	startTrace(identifier: string): ITrace;
}