toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (content != null) 'content': content!,
if (createTime != null) 'createTime': createTime!,
if (languageCode != null) 'languageCode': languageCode!,
if (messageAnnotation != null) 'messageAnnotation': messageAnnotation!,
if (name != null) 'name': name!,
if (participant != null) 'participant': participant!,
if (participantRole != null) 'participantRole': participantRole!,
if (sendTime != null) 'sendTime': sendTime!,
if (sentimentAnalysis != null) 'sentimentAnalysis': sentimentAnalysis!,
};