type Section interface {

	// Ident returns the current sections identifier
	Ident() int

	// Set appends a key-value pair to the map or sets the value of
	// a key. expiresAfter sets the expire time after the key-value pair
	// will automatically be removed from the map.
	Set(key, value interface{}, expiresAfter time.Duration, cb ...callback)

	// GetValue returns an interface of the value of a key in the
	// map. The returned value is nil if there is no value to the
	// passed key or if the value was expired.
	GetValue(key interface{}) interface{}

	// GetExpires returns the expire time of a key-value pair.
	// If the key-value pair does not exist in the map or
	// was expired, this will return an error object.
	GetExpires(key interface{}) (time.Time, error)

	// SetExpires sets the expire time for a key-value
	// pair to the passed duration. If there is no value
	// to the key passed , this will return an error.
	SetExpires(key interface{}, d time.Duration) error

	// Contains returns true, if the key exists in the map.
	// false will be returned, if there is no value to the
	// key or if the key-value pair was expired.
	Contains(key interface{}) bool

	// Remove deletes a key-value pair in the map.
	Remove(key interface{})

	// Refresh extends the expire time for a key-value pair
	// about the passed duration. If there is no value to
	// the key passed, this will return an error.
	Refresh(key interface{}, d time.Duration) error

	// Flush deletes all key-value pairs of the section
	// in the map.
	Flush()

	// Size returns the current number of key-value pairs
	// existent in the section of the map.
	Size() (i int)
}

type TimedMap struct {
	// contains filtered or unexported fields
}