code: def test_instantiate_incorrect_init_length(self, init_length):
      with pytest.raises(ValueError):
          _ = BatchedAlignments(
              batch_size=1, logits_dim=7, init_length=init_length
          )
  
imports: from typing import List
  import pytest
  import torch
  from nemo.collections.asr.parts.utils.rnnt_utils import BatchedAlignments, BatchedHyps, batched_hyps_to_hypotheses
label_desc: Use image node_id 3 for calling the TestBatchedAlignments obj's underlying member method code with example usage: obj.test_instantiate_incorrect_init_length(init_length) without return types