public function addOneExcludeLocationMap(array &$form, FormStateInterface $form_state) {
    $num_exclude_location_map = $form_state->get('num_exclude_location_map');
    $add_button = $num_exclude_location_map + 1;
    $form_state->set('num_exclude_location_map', $add_button);
    $form_state->setRebuild();
  }