vertical-cooperative/easy_my_coop_taxshelter_report/data/scheduler_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">
        <record forcecreate="True" id="ir_cron_mail_tax_shelter_action"
                model="ir.cron">
            <field name="name">Tax shelter mail batch mail</field>
            <field name="model_id" ref="model_tax_shelter_certificate"/>
            <field name="state">code</field>
            <field name="code">model.batch_send_tax_shelter_certificate()
            </field>
            <field name="interval_number">1</field>
            <field name="interval_type">hours</field>
            <field name="numbercall">-1</field>
            <field name="doall" eval="False"/>
        </record>
    </data>
</odoo>