code: @Override
      public java.util.concurrent.Future<ListSAMLProvidersResult> listSAMLProvidersAsync(
              com.amazonaws.handlers.AsyncHandler<ListSAMLProvidersRequest, ListSAMLProvidersResult> asyncHandler) {
  
          return listSAMLProvidersAsync(new ListSAMLProvidersRequest(), asyncHandler);
      }
docs: Simplified method form for invoking the ListSAMLProviders operation with an AsyncHandler.
  
  @see #listSAMLProvidersAsync(ListSAMLProvidersRequest, com.amazonaws.handlers.AsyncHandler)