How to enable Memcached caching with eve-lib

memcached_cache_config_example.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
    <Api>
        <userID>000000</userID>
        <apiKey>7E87B3A4DC214E08A35B8722C844AC40CD872423692A4E85982D45F640EC5A3F</apiKey>
        <characterID>000000000</characterID>
    </Api>
    <Scope>corp</Scope>
    <Cache>
        <backend>
            <name>Memcached</name>
                <options>
                    <host>localhost</host>
                    <port>11211</port>
                    <persistent>true</persistent>
                    <weight>1</weight>
                    <timeout>5</timeout>
                    <retry_interval>15</retry_interval>
                    <status>true</status>
                    <failure_callback/>
                </options>
        </backend>
    </Cache>
    <Connection>
        <host>apitest.eve-online.com</host>
        <port>80</port>
        <protocol>http</protocol>
    </Connection>
</config>