class_docstr: Test `MetaData` extension. 
class_docstr_tok: ["Test","`","MetaData","`","extension","."]
docstr: Test metadata specified as simple YAML. 
docstr_tok: ["Test","metadata","specified","as","simple","YAML","."]
code: def testYamlMetaData(self):
      """Test metadata specified as simple YAML."""
  
      text = """---
  Title: A Test Doc.
  Author: [Waylan Limberg, John Doe]
  Blank_Data:
  ---
  
  The body. This is paragraph one."""
      self.assertEqual(
          self.md.convert(text),
          "<p>The body. This is paragraph one.</p>",
      )
      self.assertEqual(
          self.md.Meta,
          {
              "author": ["[Waylan Limberg, John Doe]"],
              "blank_data": [""],
              "title": ["A Test Doc."],
          },
      )
  
imports: import unittest
  import markdown
label_desc: Use image node_id 3 for calling the TestMetaData obj's underlying member method code with example usage: obj.testYamlMetaData() without return types