public static function streamAvailable($transport, $streamId, $available, $disabledTill = NULL)
{
$url = self::_getApiBaseUrl() . "streams/{$streamId}/available";
$params = array('available' => $available);
if (!empty($disabledTill)) {
$params['disabledTill'] = $disabledTill;
}
$body = json_encode($params);
return $transport->send(HttpRequest::POST, $url, $body);
}