func (s *Storage) Appender() (storage.Appender, error) {
	return &timestampTracker{
		storage: s,
	}, nil
}
func (s *Storage) Appender() (storage.Appender, error) {
	return &timestampTracker{
		storage: s,
	}, nil
}
func ( s * Storage ) Appender ( ) ( storage . Appender , error ) { return & timestampTracker { storage : s , } , nil }
// Appender implements scrape.Appendable.
Appender implements scrape . Appendable .