public static function get_select_all_html($field)
{
if ($field['multiple'] && $field['select_all_none']) {
return '<div class="rwmb-select-all-none">' . __('Select', 'meta-box') . ': <a data-type="all" href="#">' . __('All', 'meta-box') . '</a> | <a data-type="none" href="#">' . __('None', 'meta-box') . '</a></div>';
}
return '';
}