magento-test/app/code/Magento/PaypalGraphQl/etc/graphql/events.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="payment_method_assign_data_payflow_link">
        <observer name="payflow_link_data_assigner" instance="Magento\PaypalGraphQl\Observer\PayflowLinkSetAdditionalData"/>
    </event>
    <event name="payment_method_assign_data_payflow_advanced">
        <observer name="payflow_advanced_data_assigner" instance="Magento\PaypalGraphQl\Observer\PayflowLinkSetAdditionalData"/>
    </event>
    <event name="payment_method_assign_data_payflowpro">
        <observer name="payflowpro_cc_data_assigner" instance="Magento\PaypalGraphQl\Observer\PayflowProSetCcData" />
    </event>
</config>