Paradox/pod/Document.php
public function toTransactionJSON()
    {
        $result = array('_rev' => $this->getRevision());

        return json_encode(array_merge($result, $this->_data), JSON_FORCE_OBJECT);
    }
public function toTransactionJSON()
    {
        $result = array('_rev' => $this->getRevision());

        return json_encode(array_merge($result, $this->_data), JSON_FORCE_OBJECT);
    }
Returns a JSON representation of this document for transactions.
@return string