eliminate

type Core struct {
	MaxSize   int // 0 => no limit
	UsedSize  int
	OnEvicted EvictFunc
}

type Entity struct {
	Key   Key
	Value Value
}

type EvictFunc func(key Key, value Value)

type ICore interface {
	Add(Key, Value)
	Get(Key) (Value, bool)
	Remove(Key)
	Clear()
	Name() string
}

type Key string

type Value any