toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (expireTime != null) 'expireTime': expireTime!,
if (keyData != null) 'keyData': keyData!,
if (name != null) 'name': name!,
if (state != null) 'state': state!,
if (use != null) 'use': use!,
};