NelmioApiDocBundle/Resources/config/services.xml

<?xml version="1.0" ?>
<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">

    <parameters>
        <parameter key="nelmio.api.parser.form_type_parser.class">Nelmio\ApiBundle\Parser\FormTypeParser</parameter>
        <parameter key="nelmio.api.formatter.abstract_formatter.class">Nelmio\ApiBundle\Formatter\AbstractFormatter</parameter>
        <parameter key="nelmio.api.formatter.markdown_formatter.class">Nelmio\ApiBundle\Formatter\MarkdownFormatter</parameter>
        <parameter key="nelmio.api.formatter.simple_formatter.class">Nelmio\ApiBundle\Formatter\SimpleFormatter</parameter>
    </parameters>

    <services>
        <service id="nelmio.api.parser.form_type_parser" class="%nelmio.api.parser.form_type_parser.class%">
            <argument type="service" id="form.factory" />
        </service>
        <service id="nelmio.api.formatter.abstract_formatter" class="%nelmio.api.formatter.abstract_formatter.class%">
            <argument type="service" id="nelmio.api.parser.form_type_parser" />
        </service>
        <service id="nelmio.api.formatter.markdown_formatter" class="%nelmio.api.formatter.markdown_formatter.class%"
            parent="nelmio.api.formatter.abstract_formatter" />
        <service id="nelmio.api.formatter.simple_formatter" class="%nelmio.api.formatter.simple_formatter.class%"
            parent="nelmio.api.formatter.abstract_formatter" />
    </services>

</container>