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onShowPersonalAccordion

\brandbox\shop\viewCheckout\lib\event\checkoutPersonalEventInterface

void

This event presents programmers with the opportunity to show or hide the "personal" tab in the checkout accordion.

The $showPersonalData parameter of the dto will determine the state of the tab once the event is over.
The propagation of the event can be stopped by setting the $continue parameter of the dto to false.