code: def test_paragraph_filter(self):
      text = """This line is long enough to be a paragraph.
  This one is not.
  This one is. I promise!
  """
      additional_paragraph = (
          "If we add this paragraph, the page should pass."
      )
  
      page = PageFeatures(text=text)
      self.assertFalse(
          c4_utils.paragraph_filter(
              page, min_paragraphs=2, min_paragraph_len=20
          )
      )
      self.assertFalse(
          c4_utils.paragraph_filter(
              page, min_paragraphs=3, min_paragraph_len=20
          )
      )
      page = PageFeatures(text=text + additional_paragraph)
      self.assertTrue(
          c4_utils.paragraph_filter(
              page, min_paragraphs=3, min_paragraph_len=20
          )
      )
  
imports: import collections
  import os
  import six
  from tensorflow_datasets import testing
  from tensorflow_datasets.core.lazy_imports_lib import lazy_imports
  from tensorflow_datasets.text import c4_utils
label_desc: Use image node_id 12 for calling the C4UtilsTest obj's underlying member method code with example usage: obj.test_paragraph_filter() without return types