store

type TimePoint struct {
	Timestamp time.Time
	Value     interface{}
}

type TimeStore interface {
	// Put stores a TimePoint to the TimeStore. Returns error upon failure.
	// Ignores zero timestamps.
	Put(tp TimePoint) error
	// Get returns a slice of elements that were previously stored with timestamps
	// between 'start' and 'end'. 'start' is expected to be before 'end'.
	// If 'start' is zero, it returns all the elements up until 'end'.
	// If 'end' is zero, it returns all the elements from 'start'.
	// If both 'start' and 'end' are zero, it returns all the elements in the store.
	Get(start, end time.Time) []TimePoint
	// Delete removes all elements that were previously stored with timestamps
	// between 'start' and 'end'.
	Delete(start, end time.Time) error
}