An event representing some state change that occurred in the build. This
message does not include field for uniquely identifying an event.
Status used for both invocation attempt and overall build completion.
Build event with contextual information about the stream it belongs to and
its position in that stream.
Streaming request message for PublishBuildToolEventStream.
States which event has been committed. Any failure to commit will cause
RPC errors, hence not recorded by this proto.
Publishes ‘lifecycle events’ that update the high-level state of a build:
Unique identifier for a build event stream.