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<message
    xmlns="jabber:client" to="aaa@example.net/8667085700924567016834" from="aaa@example.net">
    <result
        xmlns="urn:xmpp:mam:2" id="1520510373346685">
        <forwarded
            xmlns="urn:xmpp:forward:0">
            <message
                xmlns="jabber:client" xml:lang="en" to="bbb@example.net" from="aaa@example.net/60965696931000870402419" type="chat">
                <archived
                    xmlns="urn:xmpp:mam:tmp" by="aaa@example.net" id="1520510373346685"/>
                <stanza-id
                    xmlns="urn:xmpp:sid:0" by="aaa@example.net" id="1520510373346685"/>
                <body>asdf</body>
            </message>
            <delay
                xmlns="urn:xmpp:delay" from="example.net" stamp="2018-03-08T11:59:33.346685Z"/>
        </forwarded>
    </result>
</message>

params = {
    "before": "1520510373346685",
    "max": 10,
    onMessage: <some handler>,
    onComplete: <some handler>,
}
this.connection.mam.query(Strophe.getBareJidFromJid(this.myJid), params);