call method
Make the handler callable as a function
Implementation
@override
Map<int, CallbackReturnType> call(CallbackInputType input) {
final results = <int, CallbackReturnType>{};
for (int i = 0; i < map.length; i++) {
final callback = map.getByIndex(i);
results[callback.hashCode] = callback.call(input);
}
return results;
}