/**
* uploadPart
*
* @param string $key
* @param string $uploadId
* @param mixed $body
* @param integer $partNumber
* @param string $contentLength
*
* @return \Guzzle\Service\Resource\Model
*/
public function uploadPart($key, $uploadId, $body, $partNumber, $contentLength = null)
{
$params = ['Bucket' => $this->name, 'Key' => $key, 'UploadId' => $uploadId, 'Body' => $body, 'PartNumber' => $partNumber];
if (!is_null($contentLength)) {
$params['contentLength'] = $contentLength;
}
return $this->client->uploadPart($params);
}