src/Ovh/Cloud/Cloud.php
public function postInstanceSnapshot($idInstance, $snapshotName){
        return json_decode(self::getClient()->postInstanceSnapshot($this->passport, $idInstance, $snapshotName));
    }
public function postInstanceSnapshot($idInstance, $snapshotName){
        return json_decode(self::getClient()->postInstanceSnapshot($this->passport, $idInstance, $snapshotName));
    }
public function postInstanceSnapshot ( $ idInstance , $ snapshotName ) { return json_decode ( self :: getClient ( ) -> postInstanceSnapshot ( $ this -> passport , $ idInstance , $ snapshotName ) ) ; }
POST Snapshot Instance
POST /cloud/project/{serviceName}/instance/{instanceId}/snapshot

@return
POST Snapshot Instance POST / cloud / project / { serviceName } / instance / { instanceId } / snapshot