code: def test_read_nbconvert_script(
      script="""
  # coding: utf-8
  
  # A markdown cell
  
  # In[1]:
  
  
  %pylab inline
  import pandas as pd
  
  pd.options.display.max_rows = 6
  pd.options.display.max_columns = 20
  
  
  # Another markdown cell
  
  # In[2]:
  
  
  1 + 1
  
  
  # Again, a markdown cell
  
  # In[33]:
  
  
  2 + 2
  
  
  # <codecell>
  
  
  3 + 3
  """,
  ):
      assert (
          jupytext.formats.guess_format(script, ".py")[0] == "hydrogen"
      )
      nb = jupytext.reads(script, ".py")
      assert len(nb.cells) == 5
  
file_path: jupytext/tests/functional/simple_notebooks/test_read_simple_hydrogen.py
imports: import jupytext
  from jupytext.compare import compare
label_desc: Use image node_id 3 for calling a global function with example usage: test_read_nbconvert_script(script) without return types