diff --git a/generated/twdmchannelomciperformancemonitoringhistorydata.go b/generated/twdmchannelomciperformancemonitoringhistorydata.go
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+++ b/generated/twdmchannelomciperformancemonitoringhistorydata.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"
+
+// TwdmChannelOmciPerformanceMonitoringHistoryDataClassID is the 16-bit ID for the OMCI
+// Managed entity TWDM channel OMCI performance monitoring history data
+const TwdmChannelOmciPerformanceMonitoringHistoryDataClassID ClassID = ClassID(452)
+
+var twdmchannelomciperformancemonitoringhistorydataBME *ManagedEntityDefinition
+
+// TwdmChannelOmciPerformanceMonitoringHistoryData (class ID #452)
+//	This ME collects OMCI-related PM data associated with the slot/circuit pack, hosting one or more
+//	ANI-G MEs, for a specific TWDM channel. Instances of this ME are created and deleted by the OLT.
+//
+//	The counters maintained by this ME are characterized as optional in Clause 14 of [ITU-
+//	T-G.989.3].
+//
+//	For a complete discussion of generic PM architecture, refer to clause I.4.
+//
+//	Relationships
+//		An instance of this ME is associated with an instance of TWDM channel ME.
+//
+//	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 TWDM channel ME. (R,
+//			setbycreate) (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: This attribute points to an instance of the threshold data 1 and 2 MEs
+//			that contains PM threshold values. (R,-W, setbycreate) (mandatory) (2-bytes)
+//
+//		Omci Baseline Message Count
+//			OMCI baseline message count: The counter of baseline format OMCI messages directed to the given
+//			ONU. (R) (mandatory) (4-byte)
+//
+//		Omci Extended Message Count
+//			OMCI extended message count: The counter of extended format OMCI messages directed to the given
+//			ONU. (R) (mandatory) (4-byte)
+//
+//		Omci Mic Error Count
+//			OMCI MIC error count: The counter of OMCI messages received with MIC errors. (R) (mandatory)
+//			(4-byte)
+//
+type TwdmChannelOmciPerformanceMonitoringHistoryData struct {
+	ManagedEntityDefinition
+	Attributes AttributeValueMap
+}
+
+func init() {
+	twdmchannelomciperformancemonitoringhistorydataBME = &ManagedEntityDefinition{
+		Name:    "TwdmChannelOmciPerformanceMonitoringHistoryData",
+		ClassID: 452,
+		MessageTypes: mapset.NewSetWith(
+			Create,
+			Delete,
+			Get,
+			GetCurrentData,
+			Set,
+		),
+		AllowedAttributeMask: 0xf800,
+		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", UnsignedIntegerAttributeType, 0x4000, 0, mapset.NewSetWith(Read, SetByCreate, Write), false, false, false, 2),
+			3: Uint32Field("OmciBaselineMessageCount", CounterAttributeType, 0x2000, 0, mapset.NewSetWith(Read), false, false, false, 3),
+			4: Uint32Field("OmciExtendedMessageCount", CounterAttributeType, 0x1000, 0, mapset.NewSetWith(Read), false, false, false, 4),
+			5: Uint32Field("OmciMicErrorCount", CounterAttributeType, 0x0800, 0, mapset.NewSetWith(Read), false, false, false, 5),
+		},
+		Access:  CreatedByOlt,
+		Support: UnknownSupport,
+	}
+}
+
+// NewTwdmChannelOmciPerformanceMonitoringHistoryData (class ID 452) 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 NewTwdmChannelOmciPerformanceMonitoringHistoryData(params ...ParamData) (*ManagedEntity, OmciErrors) {
+	return NewManagedEntity(*twdmchannelomciperformancemonitoringhistorydataBME, params...)
+}