<?xml version="1.0"?>
<list string="Fields" duplicate="false">
                    <field name="name"/>
                    <field name="field_description"/>
                    <field name="model_id"/>
                    <field name="ttype"/>
                    <field name="state"/>
                    <field name="index"/>
                    <field name="store"/>
                    <field name="readonly"/>
                    <field name="relation"/>
                </list>
            