maybeWhen<TResult extends Object?> method Null safety

TResult maybeWhen<TResult extends Object?>(
  1. {TResult ref(
    1. String name
    )?,
  2. TResult union(
    1. List<String> names,
    2. String key
    )?,
  3. required TResult orElse(
      )}
    )
    inherited

    Implementation

    @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  TResult Function(String name)? ref,
  TResult Function(List<String> names, String key)? union,
  required TResult orElse(),
}) =>
    throw _privateConstructorUsedError;