docs: def append_text(self, text):
          """
          Append static text to the Format.
  
          :param text: The text to append.
          """
  
          if (self.conversions and
                  isinstance(self.conversions[-1],
                             conversions.StringConversion)):
              self.conversions[-1].append(text)
          else:
              self.conversions.append(conversions.StringConversion(text))