toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (etag != null) 'etag': etag!,
if (kind != null) 'kind': kind!,
if (nextPageToken != null) 'nextPageToken': nextPageToken!,
if (tables != null) 'tables': tables!,
if (totalItems != null) 'totalItems': totalItems!,
};