code: public static <K, V> LRUMap<K, V> create(int maxSize) {
        Preconditions.checkArgument(maxSize > 0, "Max size must be greater than zero.");
        return new LRUMap<>(maxSize);
     }
docs: Creates a new LRU Map.
  
  @param <K> the key type
  @param <V> the value type
  @return the map