chamilo-lms2/vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Resources/config/util.xml

<?xml version="1.0" encoding="UTF-8"?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>

        <service id="fos_user.util.canonicalizer.default" class="FOS\UserBundle\Util\Canonicalizer" public="false" />

        <service id="fos_user.util.user_manipulator" class="FOS\UserBundle\Util\UserManipulator">
            <argument type="service" id="fos_user.user_manager" />
        </service>

        <service id="fos_user.util.token_generator.default" class="FOS\UserBundle\Util\TokenGenerator" public="false">
            <argument type="service" id="logger" on-invalid="ignore" />
        </service>

    </services>

</container>