code: def body(self, **kwargs):
          
          text_content, html_content = None, None
          if self.plain:
              text_content = mold.cast(self.plain, **kwargs)
          if self.html:
              html_content = mold.cast(self.html, **kwargs)
          return text_content, html_content
docs: Return the plain and html versions of our contents.
  
          Return: tuple
          Exceptions: None