code: def test_check_end_none():
      """
      Raise error if start_point is not None,
      and end_point is None.
      """
      with pytest.raises(TypeError, match="end_point should be one.+"):
          io.xlsx_cells(wb, "clean", start_point="A1", end_point=None)
  
imports: from pathlib import Path
  import pytest
  from openpyxl import load_workbook
  from pandas.testing import assert_series_equal
  from janitor import io
label_desc: Use image node_id 6 for calling a global function with example usage: test_check_end_none() without return types