variants_by_company_report/templates.xml

<openerp>
    <data>
        <template id="variants_by_company_report.assets_backend" name="variants_by_company_report_assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/variants_by_company_report/static/src/css/main.css" />
                <script type="text/javascript" src="/variants_by_company_report/static/src/js/jquery.serializejson.min.js" />
                <script type="text/javascript" src="/variants_by_company_report/static/src/js/jspdf.min.js" />
                <script type="text/javascript" src="/variants_by_company_report/static/src/js/jspdf.plugin.autotable.min.js" />
                <script type="text/javascript" src="/variants_by_company_report/static/src/js/main.js" />
            </xpath>
        </template>

        <record id="variants_by_company_report_action" model="ir.actions.client">
            <field name="name">Variants Report</field>
            <field name="tag">variants_by_company_report.action_report</field>
        </record>

        <menuitem id="others_report_menu" name="Otros Reportes" parent="base.menu_reporting" />
        <menuitem id="variants_by_company_report_menu" parent="others_report_menu" name="Variantes por Sucursal" action="variants_by_company_report_action"/>
    </data>
</openerp>