src/vs/workbench/services/remote/common/abstractRemoteAgentService.ts/AbstractRemoteAgentService/getRoundTripTime
class AbstractRemoteAgentService:	getRoundTripTime(): Promise<number | undefined> {
		return this._withTelemetryChannel(
			async channel => {
				const start = Date.now();
				await RemoteExtensionEnvironmentChannelClient.ping(channel);
				return Date.now() - start;
			},
			undefined
		);
	}