code: def test_predict_links_all(self):
      g = self.graph_no_feat.embed(
          "rel", embedding_dim=self.d, **self.kwargs
      )
      g_new = g.predict_links_all(threshold=0)
      self.assertTrue(g_new._edges.shape[0] > 0)
      self.assertIn("score", g_new._edges.columns)
  
imports: import os
  import pytest
  import pandas
  import unittest
  import graphistry
  import numpy
  from graphistry.embed_utils import lazy_embed_import_dep, check_cudf
  import logging
label_desc: Use image node_id 4 for calling the TestEmbedCUDF obj's underlying member method code with example usage: obj.test_predict_links_all() without return types