Module frames 

Shape-dispatched peer frame families: the DHT wire and the PEX wire.

These travel over the mTLS peer transport but are NOT JSON-RPC method calls — they are dispatched on a type discriminator, not a method field, so they are modeled separately from crate::method::Method. Both belong to the Peer tier.

• The DHT wire (DhtRequest / DhtResponse) is the Kademlia content-location protocol: find_node, find_providers, add_provider, ping.
• The PEX wire (PexMessage) is peer-exchange: pex_handshake, pex_snapshot, pex_delta, pex_error.

Structs

DhtNode

A DHT node’s routing entry: a peer_id (32-byte, hex or base64 per the transport) with its addresses and record TTL.

PexPeer

A PEX peer entry: a peer_id with addresses, flags, and provenance.

Enums

DhtRequest

A DHT request frame, dispatched on type.

DhtResponse

A DHT response frame.

PexMessage

A PEX message frame, dispatched on type.