docstr: Tests that calling train multiple times results in different vectors.
code: def test_training_multiple(self):
      """Tests that calling train multiple times results in different vectors."""
      model = PoincareModel(self.data_large, burn_in=0, negative=3)
      model.train(epochs=2)
      old_vectors = np.copy(model.kv.vectors)
  
      model.train(epochs=1)
      self.assertFalse(np.allclose(old_vectors, model.kv.vectors))
  
      old_vectors = np.copy(model.kv.vectors)
      model.train(epochs=0)
      self.assertTrue(np.allclose(old_vectors, model.kv.vectors))
  
imports: import logging
  import os
  import tempfile
  import unittest
  import numpy
  from gensim.models.poincare import PoincareRelations, PoincareModel, PoincareKeyedVectors
  from gensim.test.utils import datapath
label_desc: Use image node_id 15 for calling the TestPoincareModel obj's underlying member method code with example usage: obj.test_training_multiple() without return types