WP_Alchemy While Loop

<?php
    global $members_metabox;
    $members_metabox->the_meta();


    if ($members_metabox->have_value('board_members')) :?>

        <ul>

        <?php while($members_metabox->have_fields('board_members')) : ?>

            <li><?php $members_metabox->the_value('board_name'); ?></li>


        <?php endwhile; ?>

        </ul>

    <?php endif; ?>