public function write(&$object, IProtocolFormatter $writer)
{
$referenceCache = $writer->getReferenceCache();
$refId = $referenceCache->getId($object);
if (is_string($object)) {
$writer->writeStringReference($refId);
} else {
if (is_array($object)) {
$writer->writeArrayReference($refId);
} else {
$writer->writeObjectReference($refId);
}
}
}