JetSearch - Custom Post Data

add_filter( 'jet-search/ajax-search/custom-post-data', '__your_prefix_add_custom_result_data', 10, 3 );

function __your_prefix_add_custom_result_data( $post_data, $data, $post ) {

	$custom_meta_value = get_post_meta( $post->ID, 'custom_post_meta', true );

	$post_data['custom'] = $custom_meta_value ? sprintf( '<div class="jet-ajax-search__custom-meta">%s</div>', $custom_meta_value ) : '';

	return $post_data;
}