writeJson<T> abstract method

Future<void> writeJson<T>(
  1. String key,
  2. T value,
  3. Map<String, dynamic> toJson(
    1. T value
    )
)

Serialises value to JSON using toJson and persists it under key.

Implementation

Future<void> writeJson<T>(
  String key,
  T value,
  Map<String, dynamic> Function(T value) toJson,
);