diff --git a/sdk/eventhub/azure-mgmt-eventhub/azure/mgmt/eventhub/v2018_01_01_preview/operations/_clusters_operations.py b/sdk/eventhub/azure-mgmt-eventhub/azure/mgmt/eventhub/v2018_01_01_preview/operations/_clusters_operations.py
index e7b78cc39d55..1fb30b476a2a 100644
--- a/sdk/eventhub/azure-mgmt-eventhub/azure/mgmt/eventhub/v2018_01_01_preview/operations/_clusters_operations.py
+++ b/sdk/eventhub/azure-mgmt-eventhub/azure/mgmt/eventhub/v2018_01_01_preview/operations/_clusters_operations.py
@@ -227,10 +227,10 @@ def get(
     get.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/clusters/{clusterName}'}
 
 
-    def _put_initial(
+    def _create_or_update_initial(
             self, resource_group_name, cluster_name, parameters, custom_headers=None, raw=False, **operation_config):
         # Construct URL
-        url = self.put.metadata['url']
+        url = self.create_or_update.metadata['url']
         path_format_arguments = {
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str'),
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str', max_length=90, min_length=1),
@@ -276,7 +276,7 @@ def _put_initial(
 
         return deserialized
 
-    def put(
+    def create_or_update(
             self, resource_group_name, cluster_name, parameters, custom_headers=None, raw=False, polling=True, **operation_config):
         """Creates or updates an instance of an Event Hubs Cluster.
 
@@ -303,7 +303,7 @@ def put(
         :raises:
          :class:`ErrorResponseException<azure.mgmt.eventhub.v2018_01_01_preview.models.ErrorResponseException>`
         """
-        raw_result = self._put_initial(
+        raw_result = self._create_or_update_initial(
             resource_group_name=resource_group_name,
             cluster_name=cluster_name,
             parameters=parameters,
@@ -328,13 +328,13 @@ def get_long_running_output(response):
         elif polling is False: polling_method = NoPolling()
         else: polling_method = polling
         return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
-    put.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/clusters/{clusterName}'}
+    create_or_update.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/clusters/{clusterName}'}
 
 
-    def _patch_initial(
+    def _update_initial(
             self, resource_group_name, cluster_name, parameters, custom_headers=None, raw=False, **operation_config):
         # Construct URL
-        url = self.patch.metadata['url']
+        url = self.update.metadata['url']
         path_format_arguments = {
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str'),
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str', max_length=90, min_length=1),
@@ -380,7 +380,7 @@ def _patch_initial(
 
         return deserialized
 
-    def patch(
+    def update(
             self, resource_group_name, cluster_name, parameters, custom_headers=None, raw=False, polling=True, **operation_config):
         """Modifies mutable properties on the Event Hubs Cluster. This operation
         is idempotent.
@@ -408,7 +408,7 @@ def patch(
         :raises:
          :class:`ErrorResponseException<azure.mgmt.eventhub.v2018_01_01_preview.models.ErrorResponseException>`
         """
-        raw_result = self._patch_initial(
+        raw_result = self._update_initial(
             resource_group_name=resource_group_name,
             cluster_name=cluster_name,
             parameters=parameters,
@@ -433,7 +433,7 @@ def get_long_running_output(response):
         elif polling is False: polling_method = NoPolling()
         else: polling_method = polling
         return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
-    patch.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/clusters/{clusterName}'}
+    update.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/clusters/{clusterName}'}
 
 
     def _delete_initial(