code: def test_init(self):
      strategy = ExpectedGradientLengthMaxWord(
          4, "embedding", batch_size=100, device="cpu"
      )
  
      self.assertEqual(4, strategy.num_classes)
      self.assertEqual(100, strategy.batch_size)
      self.assertEqual("cpu", strategy.device)
      self.assertEqual("embedding", strategy.layer_name)
  
file_path: small-text/tests/unit/small_text/integrations/pytorch/test_strategies.py
imports: import unittest
  import pytest
  import numpy
  from small_text.integrations.pytorch.exceptions import PytorchNotFoundError
label_desc: Use image node_id 2 for calling the ExpectedGradientLengthMaxWordTest obj's underlying member method code with example usage: obj.test_init() without return types