public function getSchedule($CampaignId)
    {
        $response = $this->mailjet->get(Resources::$CampaigndraftSchedule,
            ['id' => $CampaignId]);
        if (!$response->success()) {
            $this->throwError("CampaignDraftService:getSchedule failed",
                $response);
        }

        return $response->getData();
    }