docs: def set_speech_ssml(self, ssml):
          """Set response output speech as SSML type.
  
          Args:
              ssml: str. Response speech used when type is 'SSML', should be formatted
                  with Speech Synthesis Markup Language. Cannot exceed 8,000
                  characters.
          """
          self.response.outputSpeech.type = 'SSML'
          self.response.outputSpeech.ssml = ssml