optionalPolymorphicMap<T extends JsonPolymorphic<T>> static method

JsonOptionalPolymorphicKeyMap<T> optionalPolymorphicMap<T extends JsonPolymorphic<T>>(String key, T parse(Map<String, dynamic>))

A JsonKey that parses an optional map of JsonPolymorphic objects.

Implementation

static JsonOptionalPolymorphicKeyMap<T>
    optionalPolymorphicMap<T extends JsonPolymorphic<T>>(
            String key, T Function(Map<String, dynamic>) parse) =>
        JsonOptionalPolymorphicKeyMap.parser(key, parse);