snapshot.go
func (c *Client) ListSnapshots() (*Snapshots, error) {
	url := snapshotColPath() + `?depth=` + c.client.depth + `&pretty=` + strconv.FormatBool(c.client.pretty)
	ret := &Snapshots{}
	err := c.client.Get(url, ret, http.StatusOK)
	return ret, err
}
func (c *Client) ListSnapshots() (*Snapshots, error) {
	url := snapshotColPath() + `?depth=` + c.client.depth + `&pretty=` + strconv.FormatBool(c.client.pretty)
	ret := &Snapshots{}
	err := c.client.Get(url, ret, http.StatusOK)
	return ret, err
}
//ListSnapshots lists all snapshots