  }

 private:
  const NodeExecStats expected_;
};

inline ::testing::PolymorphicMatcher<NodeStatsMatcher> EqualsNodeStats(
    const NodeExecStats& expected) {
  return ::testing::MakePolymorphicMatcher(NodeStatsMatcher(expected));
}

TEST(HostTracerTest, CollectsTraceMeEventsAsRunMetadata) {
  int32 thread_id = Env::Default()->GetCurrentThreadId();
