def ssml_prosody(self, words, volume=None, rate=None, pitch=None, **kwargs):
return self.nest(SsmlProsody(words, volume=volume, rate=rate, pitch=pitch, **kwargs))<EOL>
Create a <Prosody> element

:param words: Words to speak
:param volume: Specify the volume, available values: default, silent, x-soft, soft, medium, loud, x-loud, +ndB, -ndB
:param rate: Specify the rate, available values: x-slow, slow, medium, fast, x-fast, n%
:param pitch: Specify the pitch, available values: default, x-low, low, medium, high, x-high, +n%, -n%
:param kwargs: additional attributes

:returns: <Prosody> element