/**
* @param string $id
* @param string $newDocumentId
* @param string $rev
* @return Document
*/
public function copyDocumentById($id, $newDocumentId, $rev = null)
{
$options = $this->server->getOptions();
$options['headers'] = ['Destination' => $newDocumentId . ($rev ? "?rev={$rev}" : '')];
$this->client->copy($this->getDocUrl($id), 201, $options);
return $this->getDocument($newDocumentId);
}
