code: def test_read_simple_file(
      script=""";; ---
  ;; title: Simple file
  ;; ---
  
  ;; Here we have some text
  ;; And below we have some code
  
  ((fn
    []
    (println "Hello World")))
  """,
  ):
      nb = jupytext.reads(script, "clj")
      assert len(nb.cells) == 3
      assert nb.cells[0].cell_type == "raw"
      assert nb.cells[0].source == "---\ntitle: Simple file\n---"
      assert nb.cells[1].cell_type == "markdown"
      assert (
          nb.cells[1].source == "Here we have some text\n"
          "And below we have some code"
      )
      assert nb.cells[2].cell_type == "code"
      compare(
          nb.cells[2].source,
          """((fn
    []
    (println "Hello World")))""",
      )
  
      script2 = jupytext.writes(nb, "clj")
      compare(script2, script)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_read_simple_file(script) without return types