[TYPO3-mvc] Checkboxes for a collection

[Jan Kornblum]

What i mean is: Is it possible to declare a models property as "array 
of arrays"? Like this:

@var array<array>

...derived from how e.g. a property holding an object storage is beeing 
declared:

\TYPO3\CMS\Extbase\Persistence\ObjectStorage<\Ext\Domain\Model\MyModel>

Regards, Jan