Method putMetric

packages/firebase-performance/common.ts:21–21

(metricName: string, value: number)

	incrementMetric(metricName: string, incrementBy: number): void;
	putAttribute(attribute: string, value: string): void;
	putMetric(metricName: string, value: number): void;
	removeMetric(metricName: string): void;
	start();
	stop();