cache

type Cache interface {
	GetAndLoad(key string, value interface{}, loader func() (interface{}, error)) error
	Get(key string, value interface{}) error
	Set(key string, value interface{}, expiration *time.Duration) error
	Delete(key string) error
}

type Logger interface {
	Printf(format string, v ...interface{})
}

type Storage interface {
	Get(key string, value interface{}) error
	Set(key string, value interface{}, expiration time.Duration) error
	Delete(key string) error
}