TTL should be a Diration and not an uint

[viggin543]

it's not clear if the TTL is in seconds or millis.

if ld.TTL > 0 {
		e := now.Add(time.Duration(ld.TTL) * time.Second)
		lock.ExpiresAt = &e
	}

I see its being cast to a Duration

[micronull]

In seconds. It is written in the readme.