code: def test_default_uncollate_raises(error_case):
      with pytest.raises(ValueError, match=error_case.match):
          default_uncollate(error_case.collated_batch)
  
imports: from collections import namedtuple
  import pytest
  import torch
  from flash.core.data.batch import default_uncollate
  from flash.core.utilities.imports import _TOPIC_CORE_AVAILABLE
label_desc: Use image node_id 2 for calling a global function with example usage: test_default_uncollate_raises(error_case) without return types