code: def _pickle_load(pkl_file):
      with warnings.catch_warnings():
          warnings.simplefilter("ignore", category=DeprecationWarning)
          if sys.version_info > (3, 0):
              return pkl.load(pkl_file, encoding="latin1")
          else:
              return pkl.load(pkl_file)
  
imports: from __future__ import absolute_import
  import os, sys
  import pickle
  import warnings
  import networkx
  import numpy
  import scipy.sparse
  from ..None import backend, batch, convert
  from ..convert import from_networkx, graph, to_networkx
  from ..transforms import reorder_graph
  from .dgl_dataset import DGLBuiltinDataset
  from .utils import _get_dgl_url, deprecate_function, deprecate_property, generate_mask_tensor, load_graphs, load_info, makedirs, save_graphs, save_info
label_desc: Use image node_id 1 for calling a global function with example usage: _pickle_load(pkl_file) and returns: pkl, pkl