diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/_meta.json b/sdk/costmanagement/azure-mgmt-costmanagement/_meta.json
index 03051a9b4540..f1add75618e5 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/_meta.json
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/_meta.json
@@ -1,11 +1,11 @@
 {
   "autorest": "3.4.2",
   "use": [
-    "@autorest/python@5.8.0",
+    "@autorest/python@5.8.1",
     "@autorest/modelerfour@4.19.2"
   ],
-  "commit": "67528b3e539b96ccaaf82c360f5715184e467e21",
+  "commit": "25af5c1c0fae2bc594c1932445d06209745f5917",
   "repository_url": "https://github.com/Azure/azure-rest-api-specs",
-  "autorest_command": "autorest specification/cost-management/resource-manager/readme.md --multiapi --python --python-mode=update --python-sdks-folder=/home/vsts/work/1/s/azure-sdk-for-python/sdk --track2 --use=@autorest/python@5.8.0 --use=@autorest/modelerfour@4.19.2 --version=3.4.2",
+  "autorest_command": "autorest specification/cost-management/resource-manager/readme.md --multiapi --python --python-mode=update --python-sdks-folder=/home/vsts/work/1/s/azure-sdk-for-python/sdk --track2 --use=@autorest/python@5.8.1 --use=@autorest/modelerfour@4.19.2 --version=3.4.2",
   "readme": "specification/cost-management/resource-manager/readme.md"
 }
\ No newline at end of file
diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
index 48944bf3938a..e5754a47ce68 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.0.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_cost_management_client_enums.py b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_cost_management_client_enums.py
index 16087446457c..eac0fd7748ff 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_cost_management_client_enums.py
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_cost_management_client_enums.py
@@ -185,6 +185,9 @@ class FunctionType(with_metaclass(_CaseInsensitiveEnumMeta, str, Enum)):
     """The name of the aggregation function to use.
     """
 
+    AVG = "Avg"
+    MAX = "Max"
+    MIN = "Min"
     SUM = "Sum"
 
 class GranularityType(with_metaclass(_CaseInsensitiveEnumMeta, str, Enum)):
diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models.py b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models.py
index 2c2ba531e35b..52eb10fed413 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models.py
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models.py
@@ -1267,7 +1267,7 @@ class QueryAggregation(msrest.serialization.Model):
     :param name: Required. The name of the column to aggregate.
     :type name: str
     :param function: Required. The name of the aggregation function to use. Possible values
-     include: "Sum".
+     include: "Avg", "Max", "Min", "Sum".
     :type function: str or ~azure.mgmt.costmanagement.models.FunctionType
     """
 
@@ -1700,7 +1700,7 @@ class ReportConfigAggregation(msrest.serialization.Model):
     :param name: Required. The name of the column to aggregate.
     :type name: str
     :param function: Required. The name of the aggregation function to use. Possible values
-     include: "Sum".
+     include: "Avg", "Max", "Min", "Sum".
     :type function: str or ~azure.mgmt.costmanagement.models.FunctionType
     """
 
diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models_py3.py b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models_py3.py
index 699d4b63d817..690a3b4823b4 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models_py3.py
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/models/_models_py3.py
@@ -1392,7 +1392,7 @@ class QueryAggregation(msrest.serialization.Model):
     :param name: Required. The name of the column to aggregate.
     :type name: str
     :param function: Required. The name of the aggregation function to use. Possible values
-     include: "Sum".
+     include: "Avg", "Max", "Min", "Sum".
     :type function: str or ~azure.mgmt.costmanagement.models.FunctionType
     """
 
@@ -1875,7 +1875,7 @@ class ReportConfigAggregation(msrest.serialization.Model):
     :param name: Required. The name of the column to aggregate.
     :type name: str
     :param function: Required. The name of the aggregation function to use. Possible values
-     include: "Sum".
+     include: "Avg", "Max", "Min", "Sum".
     :type function: str or ~azure.mgmt.costmanagement.models.FunctionType
     """