public function sendUpdateChannelOperation(Channel $channel)
    {
        $channelId = $channel->getId();
        Validate::notNull($channelId, 'channelId');

        return $this->_sendOperation(
            $channel,
            "Channels('{$channelId}')",
            Resources::HTTP_MERGE,
            [Resources::STATUS_ACCEPTED, Resources::STATUS_NO_CONTENT]);
    }