diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models.py
index 03171e3d3227..f302c8a63cb6 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models.py
@@ -180,7 +180,7 @@ class AzureCliScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -276,7 +276,7 @@ class ScriptConfigurationBase(msrest.serialization.Model):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -393,7 +393,7 @@ class AzureCliScriptProperties(DeploymentScriptPropertiesBase, ScriptConfigurati
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -537,7 +537,7 @@ class AzurePowerShellScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -635,7 +635,7 @@ class AzurePowerShellScriptProperties(DeploymentScriptPropertiesBase, ScriptConf
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -945,17 +945,23 @@ def __init__(
 class ManagedServiceIdentity(msrest.serialization.Model):
     """Managed identity generic object.
 
+    Variables are only populated by the server, and will be ignored when sending a request.
+
     :param type: Type of the managed identity. Possible values include: "UserAssigned".
     :type type: str or
      ~azure.mgmt.resource.deploymentscripts.v2019_10_01_preview.models.ManagedServiceIdentityType
-    :param tenant_id: ID of the Azure Active Directory.
-    :type tenant_id: str
+    :ivar tenant_id: ID of the Azure Active Directory.
+    :vartype tenant_id: str
     :param user_assigned_identities: The list of user-assigned managed identities associated with
      the resource. Key is the Azure resource Id of the managed identity.
     :type user_assigned_identities: dict[str,
      ~azure.mgmt.resource.deploymentscripts.v2019_10_01_preview.models.UserAssignedIdentity]
     """
 
+    _validation = {
+        'tenant_id': {'readonly': True},
+    }
+
     _attribute_map = {
         'type': {'key': 'type', 'type': 'str'},
         'tenant_id': {'key': 'tenantId', 'type': 'str'},
@@ -968,7 +974,7 @@ def __init__(
     ):
         super(ManagedServiceIdentity, self).__init__(**kwargs)
         self.type = kwargs.get('type', None)
-        self.tenant_id = kwargs.get('tenant_id', None)
+        self.tenant_id = None
         self.user_assigned_identities = kwargs.get('user_assigned_identities', None)
 
 
diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models_py3.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models_py3.py
index ea4af1cd0cf2..b722fd4af759 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models_py3.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2019_10_01_preview/models/_models_py3.py
@@ -189,7 +189,7 @@ class AzureCliScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -301,7 +301,7 @@ class ScriptConfigurationBase(msrest.serialization.Model):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -431,7 +431,7 @@ class AzureCliScriptProperties(DeploymentScriptPropertiesBase, ScriptConfigurati
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -588,7 +588,7 @@ class AzurePowerShellScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -702,7 +702,7 @@ class AzurePowerShellScriptProperties(DeploymentScriptPropertiesBase, ScriptConf
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -1037,17 +1037,23 @@ def __init__(
 class ManagedServiceIdentity(msrest.serialization.Model):
     """Managed identity generic object.
 
+    Variables are only populated by the server, and will be ignored when sending a request.
+
     :param type: Type of the managed identity. Possible values include: "UserAssigned".
     :type type: str or
      ~azure.mgmt.resource.deploymentscripts.v2019_10_01_preview.models.ManagedServiceIdentityType
-    :param tenant_id: ID of the Azure Active Directory.
-    :type tenant_id: str
+    :ivar tenant_id: ID of the Azure Active Directory.
+    :vartype tenant_id: str
     :param user_assigned_identities: The list of user-assigned managed identities associated with
      the resource. Key is the Azure resource Id of the managed identity.
     :type user_assigned_identities: dict[str,
      ~azure.mgmt.resource.deploymentscripts.v2019_10_01_preview.models.UserAssignedIdentity]
     """
 
+    _validation = {
+        'tenant_id': {'readonly': True},
+    }
+
     _attribute_map = {
         'type': {'key': 'type', 'type': 'str'},
         'tenant_id': {'key': 'tenantId', 'type': 'str'},
@@ -1058,13 +1064,12 @@ def __init__(
         self,
         *,
         type: Optional[Union[str, "ManagedServiceIdentityType"]] = None,
-        tenant_id: Optional[str] = None,
         user_assigned_identities: Optional[Dict[str, "UserAssignedIdentity"]] = None,
         **kwargs
     ):
         super(ManagedServiceIdentity, self).__init__(**kwargs)
         self.type = type
-        self.tenant_id = tenant_id
+        self.tenant_id = None
         self.user_assigned_identities = user_assigned_identities
 
 
diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models.py
index 531f19316ef1..7fab119d8926 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models.py
@@ -177,7 +177,7 @@ class AzureCliScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -272,7 +272,7 @@ class ScriptConfigurationBase(msrest.serialization.Model):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -389,7 +389,7 @@ class AzureCliScriptProperties(DeploymentScriptPropertiesBase, ScriptConfigurati
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -532,7 +532,7 @@ class AzurePowerShellScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -629,7 +629,7 @@ class AzurePowerShellScriptProperties(DeploymentScriptPropertiesBase, ScriptConf
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -937,17 +937,26 @@ def __init__(
 class ManagedServiceIdentity(msrest.serialization.Model):
     """Managed identity generic object.
 
+    Variables are only populated by the server, and will be ignored when sending a request.
+
     :param type: Type of the managed identity. Possible values include: "UserAssigned".
     :type type: str or
      ~azure.mgmt.resource.deploymentscripts.v2020_10_01.models.ManagedServiceIdentityType
+    :ivar tenant_id: ID of the Azure Active Directory.
+    :vartype tenant_id: str
     :param user_assigned_identities: The list of user-assigned managed identities associated with
      the resource. Key is the Azure resource Id of the managed identity.
     :type user_assigned_identities: dict[str,
      ~azure.mgmt.resource.deploymentscripts.v2020_10_01.models.UserAssignedIdentity]
     """
 
+    _validation = {
+        'tenant_id': {'readonly': True},
+    }
+
     _attribute_map = {
         'type': {'key': 'type', 'type': 'str'},
+        'tenant_id': {'key': 'tenantId', 'type': 'str'},
         'user_assigned_identities': {'key': 'userAssignedIdentities', 'type': '{UserAssignedIdentity}'},
     }
 
@@ -957,6 +966,7 @@ def __init__(
     ):
         super(ManagedServiceIdentity, self).__init__(**kwargs)
         self.type = kwargs.get('type', None)
+        self.tenant_id = None
         self.user_assigned_identities = kwargs.get('user_assigned_identities', None)
 
 
diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models_py3.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models_py3.py
index df488a2d6a26..4cfa0fcd68c0 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models_py3.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/deploymentscripts/v2020_10_01/models/_models_py3.py
@@ -186,7 +186,7 @@ class AzureCliScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -297,7 +297,7 @@ class ScriptConfigurationBase(msrest.serialization.Model):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -427,7 +427,7 @@ class AzureCliScriptProperties(DeploymentScriptPropertiesBase, ScriptConfigurati
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -583,7 +583,7 @@ class AzurePowerShellScript(DeploymentScript):
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -696,7 +696,7 @@ class AzurePowerShellScriptProperties(DeploymentScriptPropertiesBase, ScriptConf
     :type force_update_tag: str
     :param retention_interval: Required. Interval for which the service retains the script resource
      after it reaches a terminal state. Resource will be deleted when this duration expires.
-     Duration is based on ISO 8601 pattern (for example P7D means one week).
+     Duration is based on ISO 8601 pattern (for example P1D means one day).
     :type retention_interval: ~datetime.timedelta
     :param timeout: Maximum allowed script execution time specified in ISO 8601 format. Default
      value is P1D.
@@ -1029,17 +1029,26 @@ def __init__(
 class ManagedServiceIdentity(msrest.serialization.Model):
     """Managed identity generic object.
 
+    Variables are only populated by the server, and will be ignored when sending a request.
+
     :param type: Type of the managed identity. Possible values include: "UserAssigned".
     :type type: str or
      ~azure.mgmt.resource.deploymentscripts.v2020_10_01.models.ManagedServiceIdentityType
+    :ivar tenant_id: ID of the Azure Active Directory.
+    :vartype tenant_id: str
     :param user_assigned_identities: The list of user-assigned managed identities associated with
      the resource. Key is the Azure resource Id of the managed identity.
     :type user_assigned_identities: dict[str,
      ~azure.mgmt.resource.deploymentscripts.v2020_10_01.models.UserAssignedIdentity]
     """
 
+    _validation = {
+        'tenant_id': {'readonly': True},
+    }
+
     _attribute_map = {
         'type': {'key': 'type', 'type': 'str'},
+        'tenant_id': {'key': 'tenantId', 'type': 'str'},
         'user_assigned_identities': {'key': 'userAssignedIdentities', 'type': '{UserAssignedIdentity}'},
     }
 
@@ -1052,6 +1061,7 @@ def __init__(
     ):
         super(ManagedServiceIdentity, self).__init__(**kwargs)
         self.type = type
+        self.tenant_id = None
         self.user_assigned_identities = user_assigned_identities