type Actor struct {
	Name  string
	Email string
	When  *time.Time
}

type Commit struct {
	Tree      string
	Parents   []string
	Author    Actor
	Committer Actor
	Message   string
}

type GitObject struct {
	Type       string
	Headers    map[string][]string
	Message    string
	Signature  string
	SignedData string
	Raw        []byte
}

type Tag struct {
	Object  string
	Type    string
	Tag     string
	Tagger  Actor
	Message string
}