ObserverFn2<TInput1, TInput2, TOutput> typedef
ObserverFn2<TInput1, TInput2, TOutput> =
TOutput Function(BuildContext context, TInput1 in1, TInput2 in2)
Implementation
typedef ObserverFn2<TInput1, TInput2, TOutput> = TOutput Function(
BuildContext context, TInput1 in1, TInput2 in2);