src/vs/platform/telemetry/common/telemetryService.ts/TelemetryService/getTelemetryInfo
class TelemetryService:	async getTelemetryInfo(): Promise<ITelemetryInfo> {
		const values = await this._commonProperties;

		// well known properties
		let sessionId = values['sessionID'];
		let machineId = values['common.machineId'];
		let firstSessionDate = values['common.firstSessionDate'];
		let msftInternal = values['common.msftInternal'];

		return { sessionId, machineId, firstSessionDate, msftInternal };
	}