toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (enableTextToSpeech != null)
'enableTextToSpeech': enableTextToSpeech!,
if (outputAudioEncoding != null)
'outputAudioEncoding': outputAudioEncoding!,
if (sampleRateHertz != null) 'sampleRateHertz': sampleRateHertz!,
if (synthesizeSpeechConfigs != null)
'synthesizeSpeechConfigs': synthesizeSpeechConfigs!,
};