I figured it out.
function be_dps_add_resourcetype_classes( $classes ) {
$terms = get_the_terms($post->ID, ‘resource_type’ );
if( ! empty( $terms ) && ! is_wp_error( $terms ) ) {
foreach( $terms as $term ) {
$classes[] = ‘type-‘ . $term->slug;
}
}
return $classes;
}
add_filter( ‘display_posts_shortcode_post_class’, ‘be_dps_add_resourcetype_classes’ );