Autogenerated update (2018-06-13)

Update:
- chat_v1
- cloudiot_v1
- cloudkms_v1
- cloudresourcemanager_v1
- cloudresourcemanager_v1beta1
- cloudresourcemanager_v2
- cloudresourcemanager_v2beta1
- deploymentmanager_alpha
- deploymentmanager_v2beta
- digitalassetlinks_v1
- firebaserules_v1
- proximitybeacon_v1beta1
- pubsub_v1
- pubsub_v1beta1a
- sheets_v4
- testing_v1
- vision_v1
- vision_v1p1beta1
- vision_v1p2beta1

generated/google/apis/testing_v1/classes.rb

@@ -179,7 +179,7 @@ module Google
         # <https://developer.android.com/training/testing/junit-runner.html#using-
         # android-test-orchestrator>
         # for more information about Android Test Orchestrator.
-        # Optional, if empty, test will be run without orchestrator.
+        # Optional. If not set, the test will be run without the orchestrator.
         # Corresponds to the JSON property `orchestratorOption`
         # @return [String]
         attr_accessor :orchestrator_option