code: def test_trainvar_assign(self):
      m = objax.ModuleList([objax.TrainVar(jn.zeros(2))])
  
      def increase():
          m[0].assign(m[0].value + 1)
          return m[0].value
  
      para_increase = objax.Parallel(increase, m.vars())
      with m.vars().replicate():
          para_increase()
      self.assertEqual(m[0].value.tolist(), [1.0, 1.0])
  
imports: import os
  import unittest
  import jax.numpy
  import numpy
  import objax
label_desc: Use image node_id 15 for calling the TestParallel obj's underlying member method code with example usage: obj.test_trainvar_assign() and returns: m