public function generateSummaryMembersCsv($node) {
    $summary = $this->getSummary($node);

    $header = [
      $this->t('Title'),
      $this->t('Value'),
    ];

    $records = [
      [$this->t('Total amount of members'), $summary['totalMembers']],
      [$this->t('Registered members by Campaign'), $summary['registeredMembers']],
      [$this->t('Percentage of the registered members'), $summary['percentageMembers'] . '%'],
    ];
    $fileName = 'summary_members_' . date('Y-m-d') . '.csv';

    return $this->createCsvResponse($fileName, $header, $records);
  }