docstr: Which graph do the referenced nodes belong to?
  Better alias for `node_graph_idx_reference`.
docstr_tok: ["Which","graph","do","the","referenced","nodes","belong","to","?","Better","alias","for","`","node_graph_idx_reference","`","."]
code: def reference_nodes_graph_idx(self) -> Dict[str, torch.Tensor]:
      """
      Which graph do the referenced nodes belong to?
      Better alias for `node_graph_idx_reference`.
      """
      return self.node_graph_idx_reference
  
file_path: ptgnn/ptgnn/neuralmodels/gnn/structs.py
imports: import numpy
  import torch
  from abc import ABC, abstractmethod
  from typing import Dict, Generic, List, NamedTuple, Optional, Tuple, TypeVar
label_desc: Use image node_id 2 for calling the GnnOutput obj's underlying member method code with example usage: obj.reference_nodes_graph_idx() and returns: self