code: def test_no_metadata_on_multiline_decorator(
      text="""import pytest
  
  
  @pytest.mark.parametrize(
      "arg",
      [
          'a',
          'b',
          'c'
      ],
  )
  def test_arg(arg):
      assert isinstance(arg, str)
  """,
  ):
      """Applying black on the code of jupytext 1.4.2 turns some pytest parameters into multi-lines ones, and
      causes a few failures in test_pep8.py:test_no_metadata_when_py_is_pep8
      """
      nb = jupytext.reads(text, "py")
      assert len(nb.cells) == 2
      for cell in nb.cells:
          assert cell.cell_type == "code"
      assert nb.cells[0].source == "import pytest"
      assert nb.cells[0].metadata == {}
  
imports: import pytest
  from nbformat.v4.nbbase import new_code_cell, new_markdown_cell, new_notebook, new_raw_cell
  import jupytext
  from jupytext.compare import compare, compare_notebooks
label_desc: Use image node_id 46 for calling a global function with example usage: test_no_metadata_on_multiline_decorator(text) without return types