<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
     <event name="get_headers_data">
        <observer name="source_get_headers_data" instance="Brushyourideas\PrestashopIntegration\Observer\PassHeadersData" />
    </event>
</config>