/**
  * Create an Export Contacts Activity
  * @param string $accessToken - Constant Contact OAuth2 access token
  * @param ExportContacts $exportContacts
  * @return Activity
  */
 public function addExportContactsActivity($accessToken, ExportContacts $exportContacts)
 {
     return $this->activityService->addExportContactsActivity($accessToken, $exportContacts);
 }