code: def test_assign(
      self, replicator_fn, method_name, value, cross_replica
  ):
      replicator = replicator_fn()
      if replicator is None:
          self.skipTest("No replicator supplied.")
  
      with replicator.scope():
          v = tf.Variable(0.0)
      update_fn = lambda: getattr(v, method_name)(value)
      if cross_replica:
          # NOTE: Explicitly not running inside replicator.scope (fn should handle).
          update_fn()
      else:
          # TpuReplicator doesn't support pure eager mode.
          if isinstance(replicator, snt_replicator.TpuReplicator):
              update_fn = tf.function(update_fn)
          replicator.run(update_fn)
      for component in v._values:
          self.assertAllEqual(
              component.read_value(), tf.ones_like(component)
          )
  
imports: import os
  from absl import logging
  from absl.testing import parameterized
  from sonnet.src import initializers
  from sonnet.src import test_utils
  from sonnet.src.distribute import replicator
  from sonnet.src.distribute import replicator_test_utils
  import tensorflow
label_desc: Use image node_id 5 for calling the ReplicatorTest obj's underlying member method code with example usage: obj.test_assign(replicator_fn, method_name, value, cross_replica) without return types