Show private notes to bookings summary

/***
 * paste in your theme functions.php
 * after adding in your functions.php, go to Events > Bookings > Recent Bookings or by clicking an specific
 * click on the Gear icon and drag&drop field "Private Notes"
 *
 * This snippet will show the bookings private notes to the Bookings Summary page at Events > Bookings (Booking Notes section)
 *
 ***/
function my_em_bookings_table_cols_template_attendee2($template, $EM_Bookings_Table){
	$template['private_notes'] = 'Private Notes';
	return $template;
}
add_action('em_bookings_table_cols_template', 'my_em_bookings_table_cols_template_attendee2',10,2);

function my_em_booking_notes_template($val, $col, $EM_Booking, $EM_Bookings_Table, $csv){

	if( $col == 'private_notes' ){
		$temp = $EM_Booking->get_notes();
		$val .= '<ul>';
		foreach ($temp as $key => $value):
			$author = get_the_author_meta( 'display_name', $temp[$key]['author'] );
			$val .= '<li><ul>';
			$val .= '<li>'.'Author: '.$author.'</li>';
			$val .= '<li>'.'Notes: '.$temp[$key]['note'].'</li>';
			$val .= '</ul></li>';
		endforeach;
		$val .= '</ul>';
	}

	return $val;
}
add_filter('em_bookings_table_rows_col','my_em_booking_notes_template', 10, 5);