code: def test_load_old_files1():
      loadg_list, _ = load_old_files("data/1.bin")
      (
          idx,
          num_nodes,
          edge0,
          edge1,
          edata_e1,
          edata_e2,
          ndata_n1,
      ) = np.load(
          os.path.join(os.path.dirname(__file__), "data/1.npy"),
          allow_pickle=True,
      )
  
      load_g = loadg_list[idx]
      load_edges = load_g.all_edges("uv", "eid")
  
      assert np.allclose(F.asnumpy(load_edges[0]), edge0)
      assert np.allclose(F.asnumpy(load_edges[1]), edge1)
      assert np.allclose(F.asnumpy(load_g.edata["e1"]), edata_e1)
      assert np.allclose(F.asnumpy(load_g.edata["e2"]), edata_e2)
      assert np.allclose(F.asnumpy(load_g.ndata["n1"]), ndata_n1)
  
imports: import os
  import tempfile
  import time
  import unittest
  import warnings
  import backend
  import dgl
  import dgl.ndarray
  import numpy
  import pytest
  import scipy
  from dgl.data.utils import load_labels, load_tensors, save_tensors
label_desc: Use image node_id 9 for calling a global function with example usage: test_load_old_files1() without return types