<?xml version="1.0"?>
<data><xpath expr="//tree" position="attributes">
                    <attribute name="default_order">my_activity_date_deadline</attribute>
                </xpath>
                <field name="user_id" position="attributes">
                    <attribute name="optional">hide</attribute>
                </field>
                <field name="team_id" position="attributes">
                    <attribute name="optional">hide</attribute>
                </field>
            </data>