ObserverFn3<TInput1, TInput2, TInput3, TOutput> typedef
ObserverFn3<TInput1, TInput2, TInput3, TOutput> =
TOutput Function(BuildContext context, TInput1 in1, TInput2 in2, TInput3 in3)
Implementation
typedef ObserverFn3<TInput1, TInput2, TInput3, TOutput> = TOutput Function(
BuildContext context, TInput1 in1, TInput2 in2, TInput3 in3);