Function inferGcpTtsVoiceFamily

inferGcpTtsVoiceFamily(configuredVoices: Iterable<string>): GcpTtsVoiceFamilyId
Infers a single family from already-configured voice names (edit modal).
Parameters
- configuredVoices: Iterable<string>
  Language → voice map values.
Returns GcpTtsVoiceFamilyId
Shared family, or null when empty / mixed.
- Defined in lib/translation/gcp-tts-voice-families.ts:150