code: def test_hdf_file_list():
      pytest.importorskip("tables")
      df = pd.DataFrame(
          {"x": ["a", "b", "c", "d"], "y": [1, 2, 3, 4]},
          index=[1.0, 2.0, 3.0, 4.0],
      )
  
      with tmpdir() as tdir:
          df.iloc[:2].to_hdf(
              os.path.join(tdir, "one.h5"),
              key="dataframe",
              format="table",
          )
          df.iloc[2:].to_hdf(
              os.path.join(tdir, "two.h5"),
              key="dataframe",
              format="table",
          )
  
          with dask.config.set(scheduler="sync"):
              input_files = [
                  os.path.join(tdir, "one.h5"),
                  os.path.join(tdir, "two.h5"),
              ]
              res = dd.read_hdf(input_files, "dataframe")
              tm.assert_frame_equal(res.compute(), df)
  
imports: from __future__ import annotations
  import os
  import pathlib
  from time import sleep
  import numpy
  import pandas
  import pytest
  from packaging.version import Version
  import dask
  import dask.dataframe
  from dask._compatibility import PY_VERSION
  from dask.dataframe._compat import tm
  from dask.dataframe.optimize import optimize_dataframe_getitem
  from dask.dataframe.utils import assert_eq
  from dask.layers import DataFrameIOLayer
  from dask.utils import dependency_depth, tmpdir, tmpfile
label_desc: Use image node_id 17 for calling a global function with example usage: test_hdf_file_list() without return types