vendor_batch_payment_merge/data/account_payment_method_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">
        <!-- Payment method for direct batch payments -->
        <record id="account_payment_method_direct_batch_inbound" model="account.payment.method">
            <field name="name">Direct Batch Payment</field>
            <field name="code">direct_batch</field>
            <field name="payment_type">inbound</field>
        </record>
        <record id="account_payment_method_direct_batch_outbound" model="account.payment.method">
            <field name="name">Direct Batch Payment</field>
            <field name="code">direct_batch</field>
            <field name="payment_type">outbound</field>
        </record>
    </data>
</odoo>