editVoice method
Edit a voice Returns true if successful
Implementation
Future<bool> editVoice(String voiceId, EditVoiceRequest request) async {
try {
final formData = request.toFormData();
await _dio.post('/v1/voices/$voiceId/edit', data: formData);
return true;
} catch (error) {
throw _handleError(error);
}
}