question: extract the received message count for the client . concode_field_sep List<MqttMessage> receivedMessages concode_elem_sep Log log concode_elem_sep boolean saveMessages concode_elem_sep int sentMessageCount concode_elem_sep int receivedMessageCount concode_field_sep void connectionLost concode_elem_sep List<MqttMessage> getReceivedMessages concode_elem_sep void messageArrived concode_elem_sep int getSentMessageCount concode_elem_sep void incrementReceivedMessageCount concode_elem_sep void incrementSentMessageCount concode_elem_sep void deliveryComplete
target: int function ( ) { return receivedMessageCount ; }