magento-test/app/code/Magento/SalesRule/etc/communication.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:Communication/etc/communication.xsd">
    <topic name="sales_rule.codegenerator" request="Magento\SalesRule\Api\Data\CouponGenerationSpecInterface">
        <handler name="codegeneratorProcessor" type="Magento\SalesRule\Model\Coupon\Consumer" method="process" />
    </topic>
    <topic name="sales.rule.update.coupon.usage" request="Magento\AsynchronousOperations\Api\Data\OperationInterface">
        <handler name="sales.rule.update.coupon.usage" type="Magento\SalesRule\Model\CouponUsageConsumer" method="process" />
    </topic>
    <topic name="sales.rule.quote.trigger.recollect" request="Magento\AsynchronousOperations\Api\Data\OperationInterface">
        <handler name="sales.rule.quote.trigger.recollect" type="Magento\SalesRule\Model\Queue\Consumer\RuleQuoteRecollectTotals" method="process" />
    </topic>
</config>