code: def testNl2brCompatibility(self):
      self.assertMarkdownRenders(
          "[TOC]\ntext",
          "<p>[TOC]<br />\ntext</p>",
          extensions=[TocExtension(), Nl2BrExtension()],
      )
  
imports: from markdown.test_tools import TestCase
  from markdown.extensions.toc import TocExtension
  from markdown.extensions.nl2br import Nl2BrExtension
label_desc: Use image node_id 25 for calling the TestTOC obj's underlying member method code with example usage: obj.testNl2brCompatibility() without return types