}
	data.CommonPrefixes = commonPrefixes
	data.KeyCount = len(data.Contents) + len(data.CommonPrefixes)
	return data
}

type metaCheckFn = func(name string, action policy.Action) (s3Err APIErrorCode)

// generates CopyObjectResponse from etag and lastModified time.
func generateCopyObjectResponse(etag string, lastModified time.Time) CopyObjectResponse {
	return CopyObjectResponse{