Optional. The name or ID of an existing base voice to edit or remix.
Remarks
Use the voice name for prebuilt voices (e.g., Puck) or the voice ID for
previously created voices (e.g., voice_abc123). This can be any
prompted or replicated voice that the user has access to.
When present, input describes relative alterations to make to the base
voice.
input: string
Required. The natural-language prompt describing the desired voice, e.g.
Remarks
"A deep, booming male voice of a massive evil ogre in his middle years."
Remarks
Required in CreateVoice when type is "prompted". Returned in
CreateVoice, GetVoice, and ListVoices responses for prompted voices.
Parameters for prompted voice generation.