class_docstr: Test markdown.extensions.Extension. 
class_docstr_tok: ["Test","markdown.extensions.Extension","."]
code: def setUp(self):
      class TestExtension(markdown.extensions.Extension):
          config = {
              "foo": ["bar", "Description of foo"],
              "bar": ["baz", "Description of bar"],
          }
  
      self.ext = TestExtension()
      self.ExtKlass = TestExtension
  
imports: import unittest
  import markdown
label_desc: Use image node_id 1 for calling the TestExtensionClass obj's underlying member method code with example usage: obj.setUp() without return types