code: def testDoesNotTriggerFunctionTracing(self):
      traces = []
  
      @def_function.function
      def f(x):
          traces.append(None)  # Only happens on trace.
          return x
  
      per_replica = values_lib.PerReplica((constant_op.constant(1.0),))
  
      # Trace once.
      f(per_replica)
      self.assertNotEmpty(traces)
      del traces[:]
  
      per_replica_spec = per_replica._type_spec
      for _ in range(5):
          vals = per_replica_spec._to_components(per_replica)
          vals = [v * 2 for v in vals]
          per_replica = per_replica_spec._from_components(vals)
  
          output = f(per_replica)
          self.assertIsInstance(output, values_lib.PerReplica)
          self.assertAllEqual(output._values, per_replica._values)
          self.assertEmpty(traces)
  
imports: from absl.testing import parameterized
  from tensorflow.python.distribute import combinations
  from tensorflow.python.distribute import test_util
  from tensorflow.python.distribute import values
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.eager import test
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.util import nest
label_desc: Use image node_id 5 for calling the PerReplicaTest obj's underlying member method code with example usage: obj.testDoesNotTriggerFunctionTracing() and returns: x