docs: public static List<Tuple> extractTuplesFromObject(Object obj) {
  		if ( obj instanceof Iterable ) {
  			Iterable<?> it = (Iterable) obj;
  			return StreamSupport.stream( it.spliterator(), false )
  					.map( TupleExtractor::extractFromObject )
  					.collect( Collectors.toList() );
  		}
  		Tuple tuple = new Tuple();
  		tuple.put( "result", obj );
  		return Collections.singletonList( tuple );
  	}