toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (columns != null) 'columns': columns!,
if (encoding != null) 'encoding': encoding!,
if (familyId != null) 'familyId': familyId!,
if (onlyReadLatest != null) 'onlyReadLatest': onlyReadLatest!,
if (type != null) 'type': type!,
};