/**
* Set the access control list (ACL) permissions for an object that already exists in a bucket
*
* @param string $bucket
* @param string $key
* @param string $acl private | public-read | public-read-write | authenticated-read | bucket-owner-read | bucket-owner-full-control
*
* @return mixed
*/
public function putObjectAcl($bucket, $key, $acl)
{
return $this->instance->putObjectAcl($bucket, $key, $acl);
}