code: def input_state_dimension(self) -> int:
      return self.__input_dim
  
file_path: ptgnn/ptgnn/neuralmodels/gnn/messagepassing/globalgraphexchange.py
imports: import torch
  from abc import abstractmethod
  from torch import nn
  from typing import Dict, List, Tuple
  from ptgnn.neuralmodels.gnn.messagepassing.abstractmessagepassing import AbstractMessagePassingLayer
  from ptgnn.neuralmodels.reduceops.varsizedsummary import AbstractVarSizedElementReduce, ElementsToSummaryRepresentationInput
label_desc: Use image node_id 3 for calling the GruGlobalStateUpdate obj's underlying member method code with example usage: obj.input_state_dimension() and returns: self