Clean and regen docs (#401)
diff --git a/docs/dyn/cloudtrace_v1.projects.html b/docs/dyn/cloudtrace_v1.projects.html
index 3c1086c..5b685d1 100644
--- a/docs/dyn/cloudtrace_v1.projects.html
+++ b/docs/dyn/cloudtrace_v1.projects.html
@@ -121,7 +121,38 @@
# to use a consistent name, which makes it easier to correlate
# cross-trace spans.
"labels": { # Collection of labels associated with the span. Label keys must be less than
- # 128 bytes. Label values must be less than 16 kilobytes.
+ # 128 bytes. Label values must be less than 16 kilobytes (10MB for
+ # `/stacktrace` values).
+ #
+ # Some predefined label keys exist, or you may create your own. When creating
+ # your own, we recommend the following formats:
+ #
+ # * `/category/product/key` for agents of well-known products (e.g.
+ # `/db/mongodb/read_size`).
+ # * `short_host/path/key` for domain-specific keys (e.g.
+ # `foo.com/myproduct/bar`)
+ #
+ # Predefined labels include:
+ #
+ # * `/agent`
+ # * `/component`
+ # * `/error/message`
+ # * `/error/name`
+ # * `/http/client_city`
+ # * `/http/client_country`
+ # * `/http/client_protocol`
+ # * `/http/client_region`
+ # * `/http/host`
+ # * `/http/method`
+ # * `/http/redirected_url`
+ # * `/http/request/size`
+ # * `/http/response/size`
+ # * `/http/status_code`
+ # * `/http/url`
+ # * `/http/user_agent`
+ # * `/pid`
+ # * `/stacktrace`
+ # * `/tid`
"a_key": "A String",
},
"parentSpanId": "A String", # ID of the parent span, if any. Optional.