public function getClients()
 {
     $clientListStr = $this->query('clientlist');
     $clientStrs = explode('|', $clientListStr);
     $clients = [];
     foreach ($clientStrs as $clientStr) {
         $client = new Client($clientStr);
         if ($client->getClientType() == Client::CLIENT_TYPE_CLIENT && $client->getClientId() != 0) {
             $clients[$client->getClientId()] = $client;
         }
     }
     return $clients;
 }