public static function hydrateRecursive(Model $model, array $items, Relation $parentRelation = null)
{
$instance = $model;
$items = array_map(function ($item) use($instance, $parentRelation) {
// Convert all null relations into empty arrays
$item = $item ?: [];
return static::newFromBuilderRecursive($instance, $item, $parentRelation);
}, $items);
return $instance->newCollection($items);
}