code: def _assert_params(self, params, base_lr, num_different_lrs):
      self.assertIsNotNone(params)
      different_lrs = []
      for param in params:
          self.assertTrue(isinstance(param, dict))
          self.assertTrue(param["lr"] > 0)
          self.assertTrue(param["lr"] <= base_lr)
          different_lrs.append(param["lr"])
      self.assertEqual(
          num_different_lrs, np.unique(different_lrs).shape[0]
      )
  
file_path: small-text/tests/unit/small_text/integrations/transformers/utils/test_classification.py
imports: import unittest
  import pytest
  import numpy
  from unittest.mock import patch, MagicMock
  from small_text.integrations.pytorch.exceptions import PytorchNotFoundError
label_desc: Use image node_id 5 for calling the BuildLayerSpecificParamsTest obj's underlying member method code with example usage: obj._assert_params(params, base_lr, num_different_lrs) without return types