text: """
  This file is a copy of garage/algos/nop.py
  The only difference is the use of InstrumentedBatchPolopt to notify the test of
  the different stages in the experiment lifecycle.
  """
  
  from garage.misc.overrides import overrides
  from tests.fixtures.algos.instrumented_batch_polopt import (
      InstrumentedBatchPolopt)
  
  
  class InstrumentedNOP(InstrumentedBatchPolopt):
      """
      NOP (no optimization performed) policy search algorithm
      """
  
      def __init__(self, **kwargs):
          super(InstrumentedNOP, self).__init__(**kwargs)
  
      @overrides
      def init_opt(self):
          pass
  
      @overrides
      def optimize_policy(self, itr, samples_data):
          pass
  
      @overrides
      def get_itr_snapshot(self, itr, samples_data):
          return dict()
  