WordPress add paramater to function for CPT

WordPress add paramater to function for CPT.php

<?php
/*
    Funds list

    Usage: 
        funds_list(false); // Include the images
        or
        funds_list(); // DOon't include the images
*/
function funds_list($output_images = true) {
    echo '<ul class="funds-list no-margin no-padding">';
    $args = array(
        'post_type'         => 'fund',
        'posts_per_page'    => -1
    );
    $query = new WP_Query($args);
    while ($query->have_posts()) : $query->the_post();

        $cover_image = get_template_directory_uri() . '/images/project-hero.webp';
        if ($output_images && $cover_image) {
            $cover_image = get_field('cover_image');
        }
        ?>
        <li>
            <a href="<?php echo get_the_permalink(); ?>">
                <span><?php echo the_title(); ?></span>
                <?php if ($output_images) : ?>
                    <img src="<?php echo $cover_image; ?>" alt="<?php echo get_the_title(); ?>" />
                <?php endif; ?>
            </a>
        </li>
    <?php endwhile;
    wp_reset_postdata();
    echo '</ul>';
}