code: def test_cell_ids_differ():
      with pytest.raises(
          NotebookDifference, match="'id-one' != 'id-two'"
      ):
          compare_cells(
              [new_code_cell("1", id="id-one")],
              [new_code_cell("1", id="id-two")],
          )
  
imports: import pytest
  from nbformat.v4.nbbase import new_code_cell, new_markdown_cell, new_notebook, new_raw_cell
  from jupytext.compare import NotebookDifference, compare, compare_cells, compare_notebooks
  from jupytext.compare import test_round_trip_conversion
label_desc: Use image node_id 20 for calling a global function with example usage: test_cell_ids_differ() without return types