The set of message IDs a node should request from a peer: blobs for channels it has local subscribers for, that it doesn't already hold (Rust gap_from_peer).
gap_from_peer
Peer manifest [[ch, id], …].
[[ch, id], …]
Our store (held IDs).
Channels with local subscribers.
The set of message IDs a node should request from a peer: blobs for channels it has local subscribers for, that it doesn't already hold (Rust
gap_from_peer).