code: def test_parse_plaintext():
      parser = PlaintextParser.from_string(
          """
          Ako sa máš? Ja dobre! A ty? No
          mohlo to byť aj lepšie!!! Ale pohodička.
  
  
          TOTO JE AKOŽE NADPIS
          A toto je text pod ním, ktorý je textový.
          A tak ďalej...
      """,
          Tokenizer("czech"),
      )
  
      document = parser.document
  
      assert len(document.paragraphs) == 2
  
      assert len(document.paragraphs[0].headings) == 0
      assert len(document.paragraphs[0].sentences) == 5
  
      assert len(document.paragraphs[1].headings) == 1
      assert len(document.paragraphs[1].sentences) == 2
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from sumy.nlp.tokenizers import Tokenizer
  from sumy.parsers.plaintext import PlaintextParser
label_desc: Use image node_id 1 for calling a global function with example usage: test_parse_plaintext() without return types