<?xml version="1.0"?>
<graph string="Timesheet" sample="1" js_class="hr_timesheet_graphview">
                <field name="date" interval="month"/>
                <field name="employee_id"/>
                <field name="amount" type="measure" string="Timesheet Costs"/>
                <field name="unit_amount" string="Time Spent" type="measure" widget="timesheet_uom"/>
            </graph>
        