c.mu.Lock()
	defer c.mu.Unlock()
	if ent := c.evictList.Back(); ent != nil {
		c.removeElement(ent)
		return ent.Key, ent.Value, true
	}
	return
}

// GetOldest returns the oldest entry
func (c *LRU[K, V]) GetOldest() (key K, value V, ok bool) {
	c.mu.RLock()
	defer c.mu.RUnlock()
	if ent := c.evictList.Back(); ent != nil {
		return ent.Key, ent.Value, true
	}
	return
}