@Override
    public Builder values(Supplier<Stream<? extends ENTITY>> generatorSupplier) {
        generatorSuppliers.add(generatorSupplier);
        return this;
    }
@author Per Minborg
@param <ENTITY> type
runtime-parent/runtime-bulk/src/main/java/com/speedment/runtime/bulk/internal/builder/PersistOperationBuilderImpl.java