whenIs<T> method
Implementation
PatternMatcher<I, O> whenIs<T>(Type type, O Function(T input) function) =>
when(TransformingPredicate<I, T>((i) => i?.runtimeType == type, identity),
function);
PatternMatcher<I, O> whenIs<T>(Type type, O Function(T input) function) =>
when(TransformingPredicate<I, T>((i) => i?.runtimeType == type, identity),
function);