woocommerce Verbrauchssteuern für EU Staaten erstellen, German Shop

// Hooks
            add_filter('plugin_action_links', array($this, 'dc_woo_plugin_action_links'), 10, 2);
            add_filter('woocommerce_calculate_totals', array($this, 'woocommerce_dutycalculator_change_cart_charges'));
            add_action('woocommerce_checkout_update_order_meta', array($this, 'dc_woo_calculation_response_to_order_meta'), 10, 2); // for the order section ajax
            add_filter('woocommerce_checkout_order_processed', array($this, 'add_hs_meta_to_order_items'), 10, 2);
            add_filter('woocommerce_admin_order_data_after_shipping_address', array($this, 'dc_woo_order_section_add_link_to_calculation_after_shipping_address'));
            add_filter('woocommerce_admin_order_data_after_shipping_address', array($this, 'dutycalculator_woocommerce_calc_line_taxes_ajax_request')); // for the order section ajax
            add_action('wp_ajax_dutycalculator_woocommerce_calc_line_taxes', array($this,'dc_woo_calc_line_taxes_ajax_response'));
            add_action('woocommerce_new_order_item', array($this,'get_order_from_new_order_item'), 10, 3);
            add_action('woocommerce_ajax_add_order_item_meta', array($this,'add_order_item_hs_code_meta_ajax'), 10, 2);
            add_filter('woocommerce_product_options_tax', array($this, 'woocommerce_dutycalculator_show_widget')); //dc classification widget
            add_action('save_post_product', array($this, 'add_dc_post_meta')); //save dc widget data
            add_filter('woocommerce_cart_tax_totals', array($this, 'change_taxes_if_failed_calculation'), 1, 2);
            add_filter('woocommerce_order_tax_totals', array($this, 'change_taxes_if_failed_calculation'), 1, 2);
            add_action('woocommerce_saved_order_items', array($this, 'order_items_saved'), 1, 2);