filter add text to wc vendors pro product-edit.php

gistfile1.txt

add_filter('wcv_product_upsells', 'custom_wcv_product_upsells');
  function custom_wcv_product_upsells( $args ){
    $args['label'] = 'Up-Sells   <span style ="font-size:11px; font weight:normal;">Your message here.......</span>';
    return $args;
}