code: def test_two_blank_lines_as_cell_separator():
      rmd = """Some markdown
  text
  
  
  And a new cell
  """
  
      nb = jupytext.reads(rmd, "Rmd")
      assert len(nb.cells) == 2
      assert nb.cells[0].cell_type == "markdown"
      assert nb.cells[1].cell_type == "markdown"
      assert nb.cells[0].source == "Some markdown\ntext"
      assert nb.cells[1].source == "And a new cell"
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_two_blank_lines_as_cell_separator() without return types