pin

type PinMode int

type Pinner interface {
	IsPinned(key.Key) (string, bool, error)
	IsPinnedWithType(key.Key, string) (string, bool, error)
	Pin(context.Context, *mdag.Node, bool) error
	Unpin(context.Context, key.Key, bool) error

	// PinWithMode is for manually editing the pin structure. Use with
	// care! If used improperly, garbage collection may not be
	// successful.
	PinWithMode(key.Key, PinMode)
	// RemovePinWithMode is for manually editing the pin structure.
	// Use with care! If used improperly, garbage collection may not
	// be successful.
	RemovePinWithMode(key.Key, PinMode)

	Flush() error
	DirectKeys() []key.Key
	RecursiveKeys() []key.Key
	InternalPins() []key.Key
}