public function buildForm(
        FormBuilderInterface $builder, 
        $exportAlias, 
        array $aggregatorAliases
    ){
        $builder->add('numerotation', ChoiceType::class, array(
            'choices' => array(
                'yes' => true,
                'no'  => false
            ),
            'expanded' => true,
            'multiple' => false,
            'label' => "Add a number on first column",
            'choices_as_values' => true,
            'data' => true
        ));
    }