/**
* putPolicy
*
* @param mixed $policy mixed type: string|resource|\Guzzle\Http\EntityBodyInterface
*
* @return \Guzzle\Service\Resource\Model
*/
public function putPolicy($policy)
{
$params = ['Bucket' => $this->name, 'Policy' => $policy];
return $this->client->putBucketPolicy($params);
}