code: def _test_config_scheduler(self, config, expected_schedule):
      scheduler = MultiStepParamScheduler.from_config(config)
      schedule = [
          scheduler(epoch_num / self._num_epochs)
          for epoch_num in range(self._num_epochs)
      ]
      self.assertEqual(schedule, expected_schedule)
  
file_path: ClassyVision/test/optim_param_scheduler_multi_step_test.py
imports: import copy
  import unittest
  from classy_vision.optim.param_scheduler import build_param_scheduler, MultiStepParamScheduler
label_desc: Use image node_id 3 for calling the TestMultiStepParamScheduler obj's underlying member method code with example usage: obj._test_config_scheduler(config, expected_schedule) without return types