-impl<W: ::std::io::Write> Writeable<W> for UnsignedChannelAnnouncement {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
+impl<W: Writer> Writeable<W> for UnsignedChannelAnnouncement {
+ fn write(&self, w: &mut W) -> Result<(), DecodeError> {