proto_docs/google/api/field_behavior.rb in google-cloud-billing-v1-0.5.6 vs proto_docs/google/api/field_behavior.rb in google-cloud-billing-v1-0.6.0

@@ -52,8 +52,14 @@
 
       # Denotes a field as immutable.
       # This indicates that the field may be set once in a request to create a
       # resource, but may not be changed thereafter.
       IMMUTABLE = 5
+
+      # Denotes that a (repeated) field is an unordered list.
+      # This indicates that the service may provide the elements of the list
+      # in any arbitrary order, rather than the order the user originally
+      # provided. Additionally, the list's order may or may not be stable.
+      UNORDERED_LIST = 6
     end
   end
 end