when<TResult extends Object?> method Null safety

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. {required TResult loading(
      ),
    1. required TResult refreshing(
      1. dynamic lastValue
      ),
    2. required TResult value(
      1. dynamic value
      )}
    )
    @optionalTypeArgs, inherited

    Implementation

    @optionalTypeArgs
    TResult when<TResult extends Object?>({
      required TResult Function() loading,
      required TResult Function(T lastValue) refreshing,
      required TResult Function(T value) value,
    }) =>
        throw _privateConstructorUsedError;