/**
  *
  * @return S3_Uploads
  */
 public static function get_instance()
 {
     if (!self::$instance) {
         self::$instance = new S3_Uploads(S3_UPLOADS_BUCKET, defined('S3_UPLOADS_KEY') ? S3_UPLOADS_KEY : null, defined('S3_UPLOADS_SECRET') ? S3_UPLOADS_SECRET : null, defined('S3_UPLOADS_BUCKET_URL') ? S3_UPLOADS_BUCKET_URL : null, S3_UPLOADS_REGION);
     }
     return self::$instance;
 }
 /**
  *
  * @return S3_Uploads
  */
 public static function get_instance()
 {
     if (!self::$instance) {
         $key = defined('S3_UPLOADS_KEY') ? S3_UPLOADS_KEY : null;
         $secret = defined('S3_UPLOADS_SECRET') ? S3_UPLOADS_SECRET : null;
         $url = defined('S3_UPLOADS_BUCKET_URL') ? S3_UPLOADS_BUCKET_URL : null;
         $region = defined('S3_UPLOADS_REGION') ? S3_UPLOADS_REGION : null;
         self::$instance = new S3_Uploads(S3_UPLOADS_BUCKET, $key, $secret, $url, $region);
     }
     return self::$instance;
 }