Nest Smoke Detector - Monthly Sound Checks

Has anybody figured out how to detect the monthly sound checks that occur on Nest smoke detectors?

The manual test items are just for you testing the unit.

Switch  	MB_Manual_Test  "Manual Test [MAP(]"                                      	(Nest)     		{ channel="nest:smoke_detector:xxxxx:03GLPTayPAxYJAcm3c-z0JY-8v_cLIkh:manual_test_active" }
DateTime	MB_Manual_Time  "Last Test [%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS]"			<time>  		(Nest)			{ channel="nest:smoke_detector:xxxxx:03GLPTayPAxYJAcm3c-z0JY-8v_cLIkh:last_manual_test_time" }

I get the alert the test is going to occur through the Nest app on the my phone but it would be nice for OH to detect this so I can send a TTS out to the house vs it being just tied to my phone.

Any advise?

Best, Jay