code: def _reconstruct_pickle(obj):
      f = io.BytesIO()
      pickle.dump(obj, f)
      f.seek(0)
      obj = pickle.load(f)
      f.close()
      return obj
  
imports: import io
  import pickle
  import dgl
  import networkx
  import torch
label_desc: Use image node_id 1 for calling a global function with example usage: _reconstruct_pickle(obj) and returns: obj