/**
  * Checks if a result response is an S3 pointer.
  *
  * @param \Aws\ResultInterface $result
  *   The result from the SQS request.
  *
  * @return bool
  *   TRUE if the result corresponds to an S3 pointer. FALSE otherwise.
  */
 public static function isS3Pointer(ResultInterface $result)
 {
     // Check that the second element of the 2 position array has the expected
     // keys (and no more).
     return $result->count() == 2 && is_array($result->get(1)) && empty(array_diff($result->get(1), ['s3BucketName', 's3Key']));
 }