code: public static <K, V> DataLoader<K, V> newMappedDataLoader(MappedBatchLoader<K, V> batchLoadFunction, DataLoaderOptions options) {
          return new DataLoader<>(batchLoadFunction, options);
      }
docs: Creates new DataLoader with the specified batch loader function with the provided options
  
  @param batchLoadFunction the batch load function to use
  @param options           the options to use
  @param <K>               the key type
  @param <V>               the value type
  
  @return a new DataLoader