+void E2APMsgHdlr(Buffer *mBuf);
+uint8_t BuildAndSendE2SetupReq();
+uint8_t BuildAndSendE2ResetRequest(E2FailureCause resetCause);
+uint8_t BuildAndSendE2NodeConfigUpdate(E2NodeConfigList *recvList);
+uint8_t BuildAndSendRicServiceUpdate(RicServiceUpdate serviceUpdate);
+uint8_t duSendE2NodeConfigurationUpdate();