<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance dc" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <referenceBlock name="checkout.cart">
        <action method="setTemplate">
            <argument name="template" xsi:type="string">Hikentekno_Hello::cart.phtml</argument>
        </action>
    </referenceBlock>
</page>