code: function getBlockedContacts($standardFields = array(), $customFields = array(), $pageIndex = 1, $pageSize = 1000)
      {
          $queryParameters = array(
              'standard_field' => $standardFields,
              'page_index' => $pageIndex,
              'page_size' => $pageSize
          );
  
          $queryParameters = $this->appendArrayFields($queryParameters, 'custom_field', $customFields);
  
          return $this->get('contacts/blocked', $queryParameters);
      }
docs: Returns a page of blocked contacts. Blocked contacts are contacts with available permission
  but that are blocked for sendouts because of blacklist matches or similar reasons such as
  bounce policy.
  
  @param string[] $standardFields
  the standard fields to select
  @param string[] $customFields
  the custom fields to select
  @param number $pageIndex
  the paging index of the page to retrieve
  @param number $pageSize
  the number of results per page
  @return \em com_maileon_api_MaileonAPIResult
  the result object of the API call
  @return \em com_maileon_api_MaileonAPIResult
  the result object of the API call, with a com_maileon_api_co
  @throws com_maileon_api_MaileonAPIException
  if there was a connection problem or a server error occurredntacts_Contacts
  available at com_maileon_api_MaileonAPIResult::getResult()