serialize method

  1. @override
Map<String, String> serialize()
override

Serializes common fields to JSON.

Methods that override serialize are expected to call super.serialize and add more fields to the returned Map.

Implementation

@override
Map<String, String> serialize() =>
    super.serialize()
      ..addAll(<String, String>{'keyValueString': keyValueString, 'keyValueType': keyValueType});