<type name="Magento\Customer\Block\SectionConfig">
            <arguments>
                        <argument name="clientSideSections" xsi:type="array">
                                    <item name="checkout-data" xsi:type="string">checkout-data</item>
                                    <item name="cart-data" xsi:type="string">cart-data</item>
                        </argument>
            </arguments>
</type>