     </xf:action>
            <xf:instance id="item">
                <item/>
            </xf:instance>
            <xf:instance id="cart">
                <cart/>
            </xf:instance>
            <xf:submission id="get" action="/xforms-cart/get" method="get" serialization="none" replace="instance" instance="cart"/>
            <xf:submission id="add" action="/xforms-cart/add" ref="instance('item')" method="post" replace="none"/>
            <xf:submission id="clear" action="/xforms-cart/clear" ref="