code: def test_pipe_into_black():
      nb_org = new_notebook(
          cells=[new_code_cell("1        +1", id="cell-id")]
      )
      nb_dest = new_notebook(
          cells=[new_code_cell("1 + 1", id="cell-id")]
      )
  
      nb_pipe = pipe_notebook(nb_org, "black")
      compare_notebooks(
          nb_pipe,
          nb_dest,
          allow_expected_differences=False,
          compare_ids=True,
      )
  
imports: import os
  from copy import deepcopy
  from shutil import copyfile
  import pytest
  from nbformat.v4.nbbase import new_code_cell, new_notebook
  from jupytext import read, write
  from jupytext.cli import jupytext, pipe_notebook, system
  from jupytext.combine import black_invariant
  from jupytext.compare import compare, compare_cells, compare_notebooks
  from jupytext.header import _DEFAULT_NOTEBOOK_METADATA
label_desc: Use image node_id 3 for calling a global function with example usage: test_pipe_into_black() without return types