set method
Implementation
@override
Storage set(K key, CacheEntry<K, V> value) {
CacheEntry<K, V>? oldEntry = _internalMap[key];
if (oldEntry != null && oldEntry.value != null && onEvict != null) {
onEvictInternal(oldEntry.key, oldEntry.value!);
}
setInternal(key, value);
return this;
}