# Add first address with both contacts
$book->createAddress(function(Address $address) use ($contacts){
$address->setHouseNumber('33');
$address->setStreet('Market street')->setCity('London');
$address->setPostCode('EC4 MB5');
$address->setCounty('Greater London');
$address->setCountry('GB');
foreach($contacts as $contact){
$address->addContact($contact);
}
return $address;
});