Update link_manager_to_client example (#676)

Author: BenRKarl

examples/account_management/link_manager_to_client.py

@@ -14,8 +14,8 @@
 # limitations under the License.
 """This example shows how to link a manager customer to a client customer."""
 
-
 import argparse
+import sys
 
 from google.api_core import protobuf_helpers
 
@@ -85,12 +85,8 @@ def main(client, customer_id, manager_customer_id):
     )
     manager_link_operation = client.get_type("CustomerManagerLinkOperation")
     manager_link = manager_link_operation.update
-    manager_link.resource_name = (
-        customer_manager_link_service.customer_manager_link_path(
-            customer_id,
-            manager_customer_id,
-            manager_link_id,
-        )
+    manager_link.resource_name = customer_manager_link_service.customer_manager_link_path(
+        customer_id, manager_customer_id, manager_link_id,
     )
 
     manager_link.status = client.enums.ManagerLinkStatusEnum.ACTIVE
@@ -100,7 +96,7 @@ def main(client, customer_id, manager_customer_id):
     )
 
     response = customer_manager_link_service.mutate_customer_manager_link(
-        customer_id=manager_customer_id, operations=[manager_link_operation]
+        customer_id=customer_id, operations=[manager_link_operation]
     )
     print(
         "Client accepted invitation with resource_name: "
@@ -136,10 +132,10 @@ def main(client, customer_id, manager_customer_id):
         main(googleads_client, args.customer_id, args.manager_customer_id)
     except GoogleAdsException as ex:
         print(
-            f'Request with ID "{exception.request_id}" failed with status '
-            f'"{exception.error.code().name}" and includes the following errors:'
+            f'Request with ID "{ex.request_id}" failed with status '
+            f'"{ex.error.code().name}" and includes the following errors:'
         )
-        for error in exception.failure.errors:
+        for error in ex.failure.errors:
             print(f'\tError with message "{error.message}".')
             if error.location:
                 for field_path_element in error.location.field_path_elements: