toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (historyId != null) 'historyId': historyId!,
if (id != null) 'id': id!,
if (internalDate != null) 'internalDate': internalDate!,
if (labelIds != null) 'labelIds': labelIds!,
if (payload != null) 'payload': payload!,
if (raw != null) 'raw': raw!,
if (sizeEstimate != null) 'sizeEstimate': sizeEstimate!,
if (snippet != null) 'snippet': snippet!,
if (threadId != null) 'threadId': threadId!,
};