code: def test_sharded_file_template_non_alphanumeric_split(split_name):
      match = (
          "Split name should contain at least one alphanumeric character. Given"
          f" split name: {split_name}"
      )
      with pytest.raises(
          ValueError,
          match=match,
      ):
          naming.ShardedFileTemplate(
              data_dir="/path",
              dataset_name="ds",
              filetype_suffix="",
              split=split_name,
          )
  
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 19 for calling a global function with example usage: test_sharded_file_template_non_alphanumeric_split(split_name) without return types