// the second element is an optional override for the seen value
ChannelAnnouncement(ChannelAnnouncement, Option<u32>),
ChannelUpdate(ChannelUpdate, Option<u32>),
// the second element is an optional override for the seen value
ChannelAnnouncement(ChannelAnnouncement, Option<u32>),
ChannelUpdate(ChannelUpdate, Option<u32>),