code: public static <K, V> CacheEvent<K, V> creation(K newKey, V newValue, Cache<K, V> source) {
      return new CreationEvent<>(newKey, newValue, source);
    }
docs: Creates a {@link EventType#CREATED created} {@link CacheEvent}.
  
  @param newKey the new key
  @param newValue the new value
  @param source the event source
  @param <K> the key type
  @param <V> the value type
  
  @return a created cache event