persistentbigmap

type EventMap[DT, MT any] interface {
	Get(key string) (data DT, err error)
	Len() (l int)
	Keys() (keys []string)
	Range(f func(key string, data DT) error)
	Delete(data MT) (err error)
	Set(data DT, meta MT) (err error)
	Exists(key string) (exists bool)
}

type Map[T any] interface {
	Store(id string, data T)
	Load(id string) (data T, ok bool)
	Delete(id string)
	Range(f func(k string, v T) bool)
}