src/Mod/PartDesign/PartDesign_Model.xml

<?xml version="1.0" encoding="UTF-8"?>
<GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
    <Module Name="PartDesign">
        <Content>
            <Feature Name="Box">
                <Documentation><Author EMail="juergen.riegel@web.de" Name="Juergen Riegel"/></Documentation>
                <Property Type="App::PropertyDistance" Name="Length"/>
                <Property Type="App::PropertyDistance" Name="Height"/>
                <Property Type="App::PropertyDistance" Name="Width"/>
                <ViewProvider>
                    <Property Type="App::PropertyInt" Name="VisMode"></Property>
                </ViewProvider>
            </Feature>
        </Content>
    </Module>
</GenerateModel>