tra_backend/hr_custody/reports/custody_report.xml

<?xml version="1.0" encoding="utf-8" ?>
<odoo>
    <data>
         <record id="view_report_custody" model="ir.ui.view">
            <field name="name">report.custody.pivot</field>
            <field name="model">report.custody</field>
            <field name="arch" type="xml">
                <pivot string="Ticket Analysis" display_quantity="true" disable_linking="True">
                     <field name="name" type="row"/>
                 </pivot>
             </field>
        </record>

        <record id="action_report_custody" model="ir.actions.act_window">
            <field name="name">Custody Analysis</field>
            <field name="res_model">report.custody</field>
            <field name="view_mode">pivot</field>
            <field name="context">{'group_by_no_leaf':1,'group_by':[]}</field>
            <field name="help">This report allows you to analyse all Custody Requests. </field>
        </record>

        <menuitem name="Report" id="menu_custody_report"
                  groups="hr.group_hr_manager"
                  parent="hr_custody_main_menu" sequence="1"/>

        <menuitem name="Custody Analysis" action="action_report_custody" id="menu_custody_analysis"
                  groups="hr.group_hr_manager"
                  parent="menu_custody_report" sequence="1"/>
    </data>
</odoo>