Code for Internal Dealing

Array
(
    [posts_per_page] => 50
    [fields] => ids
    [paged] => 1
    [suppress_filters] => 0
    [post_status] => inherit
    [post_type] => attachment
    [tax_query] => Array
        (
            [relation] => OR
            [0] => Array
                (
                    [taxonomy] => attachment_category
                    [field] => slug
                    [terms] => Array
                        (
                            [0] => internal-dealing-eng
                        )

                    [operator] => IN
                )

        )

    [meta_query] => Array
        (
            [relation] => AND
            [date_clause] => Array
                (
                    [key] => date
                    [compare] => EXISTS
                )

            [order_clause] => Array
                (
                    [key] => order
                    [compare] => EXISTS
                )

        )

    [orderby] => Array
        (
            [date_clause] => DESC
            [order_clause] => DESC
        )

)