diff --git a/generated/xg-ponupstreammanagementperformancemonitoringhistorydata.go b/generated/xg-ponupstreammanagementperformancemonitoringhistorydata.go
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+/*
+ * Copyright (c) 2018 - present.  Boling Consulting Solutions (bcsw.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * NOTE: This file was generated, manual edits will be overwritten!
+ *
+ * Generated by 'goCodeGenerator.py':
+ *              https://github.com/cboling/OMCI-parser/README.md
+ */
+
+package generated
+
+import "github.com/deckarep/golang-set"
+
+// XgPonUpstreamManagementPerformanceMonitoringHistoryDataClassID is the 16-bit ID for the OMCI
+// Managed entity XG-PON upstream management performance monitoring history data
+const XgPonUpstreamManagementPerformanceMonitoringHistoryDataClassID ClassID = ClassID(346)
+
+var xgponupstreammanagementperformancemonitoringhistorydataBME *ManagedEntityDefinition
+
+// XgPonUpstreamManagementPerformanceMonitoringHistoryData (class ID #346)
+//	This ME collects PM data associated with the XG-PON TC layer. It counts upstream PLOAM messages
+//	transmitted by the ONU.
+//
+//	For a complete discussion of generic PM architecture, refer to clause I.4.
+//
+//	Relationships
+//		An instance of this ME is associated with an ANI-G.
+//
+//	Attributes
+//		Managed Entity Id
+//			Managed entity ID: This attribute uniquely identifies each instance of this ME. Through an
+//			identical ID, this ME is implicitly linked to an instance of the ANI-G. (R, set-by-create)
+//			(mandatory) (2-bytes)
+//
+//		Interval End Time
+//			Interval end time: This attribute identifies the most recently finished 15-min interval. (R)
+//			(mandatory) (1-byte)
+//
+//		Threshold Data 1_2 Id
+//			Threshold data 1/2 ID: No thresholds are defined for this ME. For uniformity with other PM, the
+//			attribute is retained and shown as mandatory, but it should be set to a null pointer. (R,-W,
+//			set-by-create) (mandatory) (2-bytes)
+//
+//		Upstream Ploam Message Count
+//			Upstream PLOAM message count: This attribute counts PLOAM messages transmitted upstream,
+//			excluding acknowledge messages. (R) (optional) (4-bytes)
+//
+//		Serial_Number_Onu Message Count
+//			Serial_number_ONU message count: This attribute counts Serial_number_ONU PLOAM messages
+//			transmitted. (R) (optional) (4-bytes)
+//
+//		Registration Message Count
+//			Registration message count: This attribute counts Registration PLOAM messages transmitted. (R)
+//			(optional) (4-bytes)
+//
+//		Key_Report Message Count
+//			Key_report message count: This attribute counts key_report PLOAM messages transmitted. (R)
+//			(optional) (4-bytes)
+//
+//		Acknowledge Message Count
+//			Acknowledge message count: This attribute counts acknowledge PLOAM messages transmitted. It
+//			includes all forms of acknowledgement (AK), including those transmitted in response to a PLOAM
+//			grant when the ONU has nothing to send. (R) (optional) (4-bytes)
+//
+//		Sleep_Request Message Count
+//			Sleep_request message count: This attribute counts sleep_request PLOAM messages transmitted. (R)
+//			(optional) (4-bytes)
+//
+type XgPonUpstreamManagementPerformanceMonitoringHistoryData struct {
+	ManagedEntityDefinition
+	Attributes AttributeValueMap
+}
+
+func init() {
+	xgponupstreammanagementperformancemonitoringhistorydataBME = &ManagedEntityDefinition{
+		Name:    "XgPonUpstreamManagementPerformanceMonitoringHistoryData",
+		ClassID: 346,
+		MessageTypes: mapset.NewSetWith(
+			Create,
+			Delete,
+			Get,
+			Set,
+		),
+		AllowedAttributeMask: 0xff00,
+		AttributeDefinitions: AttributeDefinitionMap{
+			0: Uint16Field("ManagedEntityId", PointerAttributeType, 0x0000, 0, mapset.NewSetWith(Read, SetByCreate), false, false, false, 0),
+			1: ByteField("IntervalEndTime", UnsignedIntegerAttributeType, 0x8000, 0, mapset.NewSetWith(Read), false, false, false, 1),
+			2: Uint16Field("ThresholdData12Id", PointerAttributeType, 0x4000, 0, mapset.NewSetWith(Read, SetByCreate, Write), false, false, false, 2),
+			3: Uint32Field("UpstreamPloamMessageCount", CounterAttributeType, 0x2000, 0, mapset.NewSetWith(Read), false, true, false, 3),
+			4: Uint32Field("SerialNumberOnuMessageCount", CounterAttributeType, 0x1000, 0, mapset.NewSetWith(Read), false, true, false, 4),
+			5: Uint32Field("RegistrationMessageCount", CounterAttributeType, 0x0800, 0, mapset.NewSetWith(Read), false, true, false, 5),
+			6: Uint32Field("KeyReportMessageCount", CounterAttributeType, 0x0400, 0, mapset.NewSetWith(Read), false, true, false, 6),
+			7: Uint32Field("AcknowledgeMessageCount", CounterAttributeType, 0x0200, 0, mapset.NewSetWith(Read), false, true, false, 7),
+			8: Uint32Field("SleepRequestMessageCount", CounterAttributeType, 0x0100, 0, mapset.NewSetWith(Read), false, true, false, 8),
+		},
+		Access:  CreatedByOlt,
+		Support: UnknownSupport,
+	}
+}
+
+// NewXgPonUpstreamManagementPerformanceMonitoringHistoryData (class ID 346) creates the basic
+// Managed Entity definition that is used to validate an ME of this type that
+// is received from or transmitted to the OMCC.
+func NewXgPonUpstreamManagementPerformanceMonitoringHistoryData(params ...ParamData) (*ManagedEntity, OmciErrors) {
+	return NewManagedEntity(*xgponupstreammanagementperformancemonitoringhistorydataBME, params...)
+}