getSinks(); return $sinks[$index]; } public function getSinkInputs() { return new SinkInputList($this); } public function getSources() { return new SourceList($this); } public function getSourceOutputs() { return new SourceOutputList($this); } public function getClients() { return new ClientList($this); } public function getClientByIndex($index) { $clients = $this->getClients(); return $clients[$index]; } public function getCards() { return new CardList($this); } }