code: def test_sharded_file_template_empty_split():
      with pytest.raises(
          ValueError, match="Split must be a non-empty string: .+"
      ):
          naming.ShardedFileTemplate(
              data_dir="/path",
              dataset_name="mnist",
              filetype_suffix="tfrecord",
              split="",
          )
  
imports: import os
  from absl.testing import parameterized
  from etils import epath
  import pytest
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import naming
  from tensorflow_datasets.core import splits
label_desc: Use image node_id 18 for calling a global function with example usage: test_sharded_file_template_empty_split() without return types