diff --git a/.azure-pipelines/ci-build.yml b/.azure-pipelines/ci-build.yml
index 7e2227a8994..ec2655f7af7 100644
--- a/.azure-pipelines/ci-build.yml
+++ b/.azure-pipelines/ci-build.yml
@@ -38,6 +38,8 @@ jobs:
     displayName: Microsoft Graph PowerShell SDK CI Build
     timeoutInMinutes: 840
     steps:
+      - script: |
+          git submodule update --init --recursive
       - template: ./common-templates/install-tools.yml
       - template: ./common-templates/security-pre-checks.yml
 
diff --git a/.azure-pipelines/common-templates/checkout.yml b/.azure-pipelines/common-templates/checkout.yml
index e011ebbcd60..13e6fdbc475 100644
--- a/.azure-pipelines/common-templates/checkout.yml
+++ b/.azure-pipelines/common-templates/checkout.yml
@@ -10,7 +10,7 @@ steps:
   - checkout: self
     clean: true
     fetchDepth: 1
-    submodules: true
+    submodules: recursive
     persistCredentials: true
 
   - task: PowerShell@2
diff --git a/.azure-pipelines/common-templates/install-tools.yml b/.azure-pipelines/common-templates/install-tools.yml
index c0cf80b922d..4e4dbfa13a4 100644
--- a/.azure-pipelines/common-templates/install-tools.yml
+++ b/.azure-pipelines/common-templates/install-tools.yml
@@ -30,10 +30,16 @@ steps:
     displayName: Install NodeJs
     inputs:
       versionSpec: 16.x
-
+      
   - task: Npm@1
     displayName: Install AutoRest
     inputs:
       command: custom
       customCommand: install -g autorest@latest
 
+  - task: Npm@1
+    displayName: Install Rush
+    inputs:
+      command: custom
+      customCommand: install -g @microsoft/rush
+
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000000..d8e372a2f55
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "autorest.powershell"]
+	path = autorest.powershell
+	url = https://github.com/microsoftgraph/autorest.powershell
+	branch = powershell-v2
diff --git a/autorest.powershell b/autorest.powershell
new file mode 160000
index 00000000000..58766ba7b5d
--- /dev/null
+++ b/autorest.powershell
@@ -0,0 +1 @@
+Subproject commit 58766ba7b5d72f0d27f712dfcb672167eda539c2
diff --git a/src/Groups/beta/custom/NewMgBetaGroupMember_Create.cs b/src/Groups/beta/custom/NewMgBetaGroupMember_Create.cs
index 88ddd85dfa7..86ecc61df39 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupMember_Create.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupMember_Create.cs
@@ -43,6 +43,13 @@ public partial class NewMgBetaGroupMember_Create : System.Management.Automation.
 
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
 
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
@@ -262,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 try
                 {
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
-                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Microsoft.Graph.Beta.PowerShell.Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new global::System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), global::System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = BodyParameter })
+                    WriteError(new global::System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), global::System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new global::System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateExpanded.cs b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateExpanded.cs
index b01c1e1a293..18b1b98f39f 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateExpanded.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgBetaGroupMember_CreateExpanded : System.Management.Aut
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -263,12 +271,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 {
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.Beta.PowerShell.Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/beta/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.Beta.PowerShell.Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentity.cs b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentity.cs
index 70a331713ac..de4845662d3 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentity.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentity.cs
@@ -44,6 +44,14 @@ public partial class NewMgBetaGroupMember_CreateViaIdentity : System.Management.
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -261,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                     {
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
-                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentityExpanded.cs b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentityExpanded.cs
index 0546c0f56cf..63979df1619 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentityExpanded.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupMember_CreateViaIdentityExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgBetaGroupMember_CreateViaIdentityExpanded : System.Man
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -262,12 +270,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/beta/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupOwner_Create.cs b/src/Groups/beta/custom/NewMgBetaGroupOwner_Create.cs
index 7c5f0785860..77a63013ce2 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupOwner_Create.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupOwner_Create.cs
@@ -42,6 +42,14 @@ public partial class NewMgBetaGroupOwner_Create : System.Management.Automation.P
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -260,12 +268,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 try
                 {
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
-                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateExpanded.cs b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateExpanded.cs
index 9dedb8d4a7c..3920f545749 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateExpanded.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgBetaGroupOwner_CreateExpanded : System.Management.Auto
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -263,12 +271,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 {
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.Beta.PowerShell.Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/beta/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.Beta.PowerShell.Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentity.cs b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentity.cs
index 69ca55ae96f..99d35b58896 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentity.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentity.cs
@@ -44,6 +44,14 @@ public partial class NewMgBetaGroupOwner_CreateViaIdentity : System.Management.A
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -261,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                     {
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
-                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentityExpanded.cs b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentityExpanded.cs
index 007cc216402..b517c309cc5 100644
--- a/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentityExpanded.cs
+++ b/src/Groups/beta/custom/NewMgBetaGroupOwner_CreateViaIdentityExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgBetaGroupOwner_CreateViaIdentityExpanded : System.Mana
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+        
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -262,12 +270,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/beta/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId ?? null, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId ?? null,Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupMember_Create.cs b/src/Groups/v1.0/custom/NewMgGroupMember_Create.cs
index 4bf1ea417de..018761bd42f 100644
--- a/src/Groups/v1.0/custom/NewMgGroupMember_Create.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupMember_Create.cs
@@ -43,6 +43,14 @@ public partial class NewMgGroupMember_Create : System.Management.Automation.PSCm
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -261,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 try
                 {
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
-                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Microsoft.Graph.PowerShell.Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new global::System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), global::System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = BodyParameter })
+                    WriteError(new global::System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), global::System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new global::System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupMember_CreateExpanded.cs b/src/Groups/v1.0/custom/NewMgGroupMember_CreateExpanded.cs
index 76903d5724a..862cb923d25 100644
--- a/src/Groups/v1.0/custom/NewMgGroupMember_CreateExpanded.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupMember_CreateExpanded.cs
@@ -33,6 +33,15 @@ public partial class NewMgGroupMember_CreateExpanded : System.Management.Automat
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -263,12 +272,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 {
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.PowerShell.Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/v1.0/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.PowerShell.Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentity.cs b/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentity.cs
index 80d62dbafcc..f4c567f83ee 100644
--- a/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentity.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentity.cs
@@ -44,6 +44,14 @@ public partial class NewMgGroupMember_CreateViaIdentity : System.Management.Auto
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -261,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                     {
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
-                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentityExpanded.cs b/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentityExpanded.cs
index fc6f96c7296..b2c4686ac62 100644
--- a/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentityExpanded.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupMember_CreateViaIdentityExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgGroupMember_CreateViaIdentityExpanded : System.Managem
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -262,12 +270,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/v1.0/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateMemberGraphBPreRef(InputObject.GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupOwner_Create.cs b/src/Groups/v1.0/custom/NewMgGroupOwner_Create.cs
index 1b152270a69..c0b38a796e1 100644
--- a/src/Groups/v1.0/custom/NewMgGroupOwner_Create.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupOwner_Create.cs
@@ -41,7 +41,13 @@ public partial class NewMgGroupOwner_Create : System.Management.Automation.PSCmd
 
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
 
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -260,12 +266,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 try
                 {
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
-                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateExpanded.cs b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateExpanded.cs
index 2167edb33db..c6d0e008bc2 100644
--- a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateExpanded.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgGroupOwner_CreateExpanded : System.Management.Automati
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>Backing field for <see cref="GroupId" /> property.</summary>
         private string _groupId;
 
@@ -263,12 +271,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                 {
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.PowerShell.Runtime.Events.CmdletBeforeAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/v1.0/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(GroupId, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Microsoft.Graph.PowerShell.Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { GroupId = GroupId, Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentity.cs b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentity.cs
index 1954914322e..35ea6529838 100644
--- a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentity.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentity.cs
@@ -41,6 +41,14 @@ public partial class NewMgGroupOwner_CreateViaIdentity : System.Management.Autom
         [Category(ParameterCategory.Runtime)]
         public System.Management.Automation.SwitchParameter Break { get; set; }
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
@@ -261,12 +269,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                     {
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
-                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId, BodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId, Headers, BodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = BodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = BodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentityExpanded.cs b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentityExpanded.cs
index a8423a542b1..62c718c5289 100644
--- a/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentityExpanded.cs
+++ b/src/Groups/v1.0/custom/NewMgGroupOwner_CreateViaIdentityExpanded.cs
@@ -33,6 +33,14 @@ public partial class NewMgGroupOwner_CreateViaIdentityExpanded : System.Manageme
         /// <summary>The reference to the client API class.</summary>
         public Groups Client => Module.Instance.ClientAPI;
 
+        /// <summary>Backing field for <see cref="Headers" /> property.</summary>
+        private System.Collections.IDictionary _headers;
+
+        /// <summary>Optional headers that will be added to the request.</summary>
+        [System.Management.Automation.Parameter(Mandatory = false, HelpMessage = "Optional headers that will be added to the request.", ValueFromPipeline = true)]
+        [Category(ParameterCategory.Runtime)]
+        public System.Collections.IDictionary Headers { get => this._headers; set => this._headers = value; }
+        
         /// <summary>SendAsync Pipeline Steps to be appended to the front of the pipeline</summary>
         [System.Management.Automation.Parameter(Mandatory = false, DontShow = true, HelpMessage = "SendAsync Pipeline Steps to be appended to the front of the pipeline")]
         [System.Management.Automation.ValidateNotNull]
@@ -262,12 +270,12 @@ protected async System.Threading.Tasks.Task ProcessRecordAsync()
                         ThrowTerminatingError(new System.Management.Automation.ErrorRecord(new System.Exception("InputObject has null value for InputObject.GroupId"), string.Empty, System.Management.Automation.ErrorCategory.InvalidArgument, InputObject));
                     }
                     _bodyParameter.OdataId = $"https://graph.microsoft.com/v1.0/directoryObjects/{DirectoryObjectId}";
-                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId ?? null, _bodyParameter, onNoContent, onDefault, this, Pipeline);
+                    await this.Client.GroupCreateOwnerGraphBPreRef(InputObject.GroupId ?? null, Headers, _bodyParameter, onNoContent, onDefault, this, Pipeline);
                     await ((Runtime.IEventListener)this).Signal(Runtime.Events.CmdletAfterAPICall); if (((Runtime.IEventListener)this).Token.IsCancellationRequested) { return; }
                 }
                 catch (Runtime.UndeclaredResponseException urexception)
                 {
-                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { body = _bodyParameter })
+                    WriteError(new System.Management.Automation.ErrorRecord(urexception, urexception.StatusCode.ToString(), System.Management.Automation.ErrorCategory.InvalidOperation, new { Headers = Headers, body = _bodyParameter })
                     {
                         ErrorDetails = new System.Management.Automation.ErrorDetails(urexception.Message) { RecommendedAction = urexception.Action }
                     });
diff --git a/src/readme.graph.md b/src/readme.graph.md
index 9983a6f46ac..2c2840971d7 100644
--- a/src/readme.graph.md
+++ b/src/readme.graph.md
@@ -6,7 +6,8 @@
 azure: false
 powershell: true
 version: latest
-use: "@autorest/powershell@3.0.509"
+#use: "@autorest/powershell@3.0.509"
+use: "$(this-folder)../autorest.powershell"
 export-properties-for-dict: false
 metadata:
     authors: Microsoft Corporation
diff --git a/tools/GenerateModules.ps1 b/tools/GenerateModules.ps1
index 2eff7c1ac36..2e3d85b1253 100644
--- a/tools/GenerateModules.ps1
+++ b/tools/GenerateModules.ps1
@@ -50,6 +50,11 @@ if (-not (Test-Path $ModuleMappingPath)) {
     Write-Error "Module mapping file not be found: $ModuleMappingPath."
 }
 
+# Build AutoREST.PowerShell submodule.
+Set-Location (Join-Path $ScriptRoot "../autorest.powershell")
+rush update --purge
+rush build
+
 $RequiredGraphModules = @()
 $AuthModuleManifest = Join-Path $ModulesSrc "Authentication" "Authentication" "artifacts" "Microsoft.Graph.Authentication.psd1"
 $LoadedAuthModule = Import-Module $AuthModuleManifest -PassThru -ErrorAction SilentlyContinue