Getting the name of a stack in an area

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Is it possible to get the name of a stack that is in a page area? I need to count the number of blocks in the stack, but don't know the name of the stack or I'd do this:

$s = Stack::getByName('THE STACK NAME');
$blocks = $s->getBlocks(STACKS_AREA_NAME);

Thanks!

jmcgarvey