protected function insertIntegerArray($parent, $k, $v, $fn, &$optionals)
{
// The user has passed a wrapper array:
// [ [...], ... ]
$context = [];
foreach ($v as $kk => $vv) {
$cx = $this->handleInsertion($parent, $kk, $vv, $fn, $optionals);
$context = \array_merge($context, $cx);
}
return $context;
}