}
}
+#[cfg(test)]
+impl<T: sealed::UnknownFeature> Features<T> {
+ pub(crate) fn unknown() -> Self {
+ let mut features = Self::empty();
+ features.set_unknown_feature_required();
+ features
+ }
+}
+
macro_rules! impl_feature_len_prefixed_write {
($features: ident) => {
impl Writeable for $features {