toMap method
Implementation
Map<String, dynamic> toMap() {
final Map<String, String> param = {
AiuiConstant.keyVcn: vcn.toString(),
AiuiConstant.keySpeed: speed.toString(),
AiuiConstant.keyVolume: volume.toString(),
AiuiConstant.keyPitch: pitch.toString(),
AiuiConstant.keyEnt: ent.name,
AiuiConstant.keyTag: tag ?? '@${DateTime.now().millisecond}'
};
param.removeWhere(_isNull);
return param;
}