hunk.code_window:     int64_t best_node = -1;
       // This an actor which requires no resources.
       // Pick a random node to to avoid all scheduling all actors on the local node.
       if (nodes_.size() > 0) {
         int idx = std::rand() % nodes_.size();
         for (auto &node : nodes_) {
           if (idx == 0) {
             best_nodes.emplace_back(node.first);
             break;
  
hunk.labels: keep keep keep keep replace keep keep keep keep
hunk.after_edit:       std::uniform_int_distribution<int> distribution(0, nodes_.size() - 1);
         int idx = distribution(gen_);
  
hunk.file_path: src/ray/raylet/scheduling/cluster_resource_scheduler.cc
hunk.type: replace
file: from joblib.parallel import register_parallel_backend
  
  
  def register_ray():
      """ Register Ray Backend to be called with parallel_backend("ray"). """
      try:
          from ray.util.joblib.ray_backend import RayBackend
          register_parallel_backend("ray", RayBackend)
      except ImportError:
          msg = ("To use the ray backend you must install ray."
                 "Try running 'pip install ray'."
                 "See https://docs.ray.io/en/master/installation.html"
                 "for more information.")
          raise ImportError(msg)
  
  
  __all__ = ["register_ray"]
  