func (t *Target) LastScrapeDuration() time.Duration {
	t.mtx.RLock()
	defer t.mtx.RUnlock()

	return t.lastScrapeDuration
}
func (t *Target) LastScrapeDuration() time.Duration {
	t.mtx.RLock()
	defer t.mtx.RUnlock()

	return t.lastScrapeDuration
}
// LastScrapeDuration returns how long the last scrape of the target took.