func (c ChecksumType) StringFull() string {
	out := []string{c.String()}
	if c.Is(ChecksumMultipart) {
		out = append(out, "MULTIPART")
	}
	if c.Is(ChecksumIncludesMultipart) {
		out = append(out, "INCLUDESMP")
	}
	if c.Is(ChecksumTrailing) {
		out = append(out, "TRAILING")
	}
	if c.Is(ChecksumFullObject) {
		out = append(out, "FULLOBJ")
	}
	return strings.Join(out, "|")
}