Prompt played as part of the PlayPrompt action.
The Language enum value to use for Text-To-Speech. Only applicable if value is text. The default value is “en-US”. Note, currently en-US is the only supported language.
Indicates whether to emphasize when tts'ing out. It's applicable only if value is text. The default value is false.
The SayAs enum value indicates whether to customize pronunciation during tts. It's applicable only if value is text.
VoiceGender enum value. The default value is “female”.