code: def _get_valid_config(self):
      return {
          "name": "polynomial",
          "num_epochs": self._num_epochs,
          "base_value": 0.1,
          "power": 1,
      }
  
file_path: ClassyVision/test/optim_param_scheduler_polynomial_test.py
imports: import copy
  import unittest
  from classy_vision.optim.param_scheduler import build_param_scheduler, PolynomialDecayParamScheduler
label_desc: Use image node_id 1 for calling the TestPolynomialScheduler obj's underlying member method code with example usage: obj._get_valid_config() and returns: dict