type InvalidUploadID struct {
	Bucket   string
	Object   string
	UploadID string
}

func (e InvalidUploadID) Error() string {
	return "Invalid upload id " + e.UploadID
}

// InvalidPart One or more of the specified parts could not be found
type InvalidPart struct {
	PartNumber int
	ExpETag    string
	GotETag    string
}

func (e InvalidPart) Error() string {