EventCb<T, U, V> typedef
EventCb<T, U, V> =
FutureOr<void> Function(T a, [U? b, V? c])
Implementation
typedef EventCb<T, U, V> = FutureOr<void> Function(T a, [U? b, V? c]);
typedef EventCb<T, U, V> = FutureOr<void> Function(T a, [U? b, V? c]);