Paradox/pod/Edge.php
public function getTo()
    {
        if (isset($this->_to)) {
            return $this->_to;
        }

        if (!isset($this->_to) && isset($this->_data['_to'])) {
            $toolbox = $this->_toolbox;

            $driverVertex = $toolbox->getDriver()->getVertex($toolbox->getGraph(), $this->parseIdForKey($this->_data['_to']));

            $this->_to = $toolbox->getPodManager()->convertDriverDocumentToPod($driverVertex);

            return $this->_to;
        }

        return null;
    }
public function getTo()
    {
        if (isset($this->_to)) {
            return $this->_to;
        }

        if (!isset($this->_to) && isset($this->_data['_to'])) {
            $toolbox = $this->_toolbox;

            $driverVertex = $toolbox->getDriver()->getVertex($toolbox->getGraph(), $this->parseIdForKey($this->_data['_to']));

            $this->_to = $toolbox->getPodManager()->convertDriverDocumentToPod($driverVertex);

            return $this->_to;
        }

        return null;
    }
Get the to vertex. If we do not have the vertex yet (edge was loaded from the server), then fetch it from the server.
@return null|AModel