/** * Add a Remove Contacts From Lists Activity from a file. Valid file types are txt, csv, xls, xlsx * @param string $accessToken - Constant Contact OAuth2 access token * @param string $fileName - The name of the file (ie: contacts.csv) * @param string $contents - The contents of the file * @param string $lists - Comma separated list of ContactList id' to add the contacts too * @return Activity */ public function addRemoveContactsFromListsActivityFromFile($accessToken, $fileName, $contents, $lists) { return $this->activityService->addRemoveContactsFromListsActivityFromFile($accessToken, $fileName, $contents, $lists); }