extract<R> method
Extracts the child Decodables for the type parameters A
and B
from the composed Decodable
for type T<A, B>.
Implementation
@override
R extract<R>(R Function<A, B>(Codable<A>? codableA, Codable<B>? codableB) fn) {
return fn<K, V>(keyCodable, codable);
}