<?xml version="1.0"?>
<param xml:id="mea1_mercury2_vml_v_##energy_index##">
    <get>
        <vi name="bepi:mea1:mercury2.vml">
            <baseParam name="velocity"/>
        </vi>
    </get>
    <process description="velocity">$bepi_mea1_mercury2_46_vml_velocity[##energy_index##]</process>
    <output/>
</param>