Array
(
    [0] => WC_Product_Attribute Object
        (
            [data:protected] => Array
                (
                    [id] => 0
                    [name] => OE Code
                    [options] => Array
                        (
                            [0] => 111-911-023/D
                        )

                    [position] => 0
                    [visible] => 1
                    [variation] => 
                )

        )

)