Is it possible to ignore IWANT messages at the application level?

[synzhu]

Context: https://discuss.libp2p.io/t/filtering-nodes-that-we-gossip-to/1012#:~:text=A%20more,t%20exist.

Would like to have a feature, if one doesn't yet exist, that allows me to decide at the application level whether or not to ignore an IWANT message based on the requesting peer.

This is related to libp2p/go-libp2p-pubsub#443

[Stebalien]

Please keep forum questions to the forum.

[Stebalien]

(or just continue the discussion in go-libp2p-pubsub, this repo is the global libp2p repo)