The official documentation says:
/*
* @param Google_Service_Drive $service Drive API service instance.
*/
$service->files->untrash($fileId);
But there is no such method in the library, if I call this I get:
[Error]
Call to undefined method Google\Service\Drive\Resource\Files::untrash()
My client library version is:
"google/apiclient": "^2.12.1",