XXGPlayDelegate XXGUIkitDelegate MQTTTransport XXGIAPPayDelegate pinnedCertificates cleanSessionFlag willFlag willTopic protocolLevel internalSubscriptions streams mid wireFormat accessGroup authenticationType synchronizable orderId onTopic connect connectWithConnectHandler subscribeToTopics unsubscribeTopics publishData publishHandler closeWithDisconnectHandler MQTTSSLSecurityPolicyTransport MQTTCoreDataPersistence MQTTSession MQTTInMemoryPersistence MQTTPersistence MQTTCFSocketEncoder MQTTSessionManager MQTTCFSocketTransport MQTTCFSocketDecoder MQTTMessage MQTTDecoder MQTTSessionSynchron MQTTSessionLegacy MQTTClient connectTo keepAlive initWithClientId incomingFlag retainedFlag qosLevel messageId deadline deleteAllFlowsForClientId sync allFlowsforClientId flowforClientId MQTTCFSocketEncoderStateReady closeInternal nextMsgId mqttTransport mqttTransportDidClose mqttTransportDidOpen MQTTDecoderEventProtocolError MQTTDecoderEventConnectionClosed MQTTDecoderEventConnectionError keyChainStoreWithServer xxpk_a_shineupon_map errorMsg