Autogenerated update (2018-09-14)

Update:
- adexperiencereport_v1
- cloudtrace_v1
- servicemanagement_v1
- serviceuser_v1
- testing_v1

generated/google/apis/cloudtrace_v1/classes.rb

@@ -85,7 +85,8 @@ module Google
         attr_accessor :spans
       
         # Globally unique identifier for the trace. This identifier is a 128-bit
-        # numeric value formatted as a 32-byte hex string.
+        # numeric value formatted as a 32-byte hex string. For example,
+        # `382d4f4c6b7bb2f4a972559d9085001d`.
         # Corresponds to the JSON property `traceId`
         # @return [String]
         attr_accessor :trace_id
@@ -174,7 +175,7 @@ module Google
         attr_accessor :parent_span_id
       
         # Identifier for the span. Must be a 64-bit integer other than 0 and
-        # unique within a trace.
+        # unique within a trace. For example, `2205310701640571284`.
         # Corresponds to the JSON property `spanId`
         # @return [Fixnum]
         attr_accessor :span_id