code: def test_row_attributes(self):
      self._api.SetImageFile(self._image_file)
      self._api.Recognize()
      it = self._api.GetIterator()
      attrs = it.RowAttributes()
      self.assertIsInstance(attrs["row_height"], float)
      self.assertIsInstance(attrs["ascenders"], float)
      self.assertIsInstance(attrs["descenders"], float)
  
imports: import unittest
  import re
  import os.path
  import tesserocr
label_desc: Use image node_id 26 for calling the TestTessBaseApi obj's underlying member method code with example usage: obj.test_row_attributes() without return types