hunk.code_window:   /// List of nodes in the clusters and their resources organized as a map.
     /// The key of the map is the node ID.
     absl::flat_hash_map<int64_t, Node> nodes_;
     /// Identifier of local node.
     int64_t local_node_id_;
     /// Resources of local node.
     NodeResourceInstances local_resources_;
     /// Keep the mapping between node and resource IDs in string representation
     /// to integer representation. Used for improving map performance.
  
hunk.labels: keep keep keep keep add keep keep keep keep
hunk.after_edit:   /// Internally maintained random number generator.
     std::mt19937_64 gen_;
  
hunk.file_path: src/ray/raylet/scheduling/cluster_resource_scheduler.h
hunk.type: add