toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (createTime != null) 'createTime': createTime!,
if (info != null) 'info': info!,
if (lockId != null) 'lockId': lockId!,
if (operation != null) 'operation': operation!,
if (version != null) 'version': version!,
if (who != null) 'who': who!,
};