The entrypoint for all actions that relate presence of other peers known by the current peer, either directly or through other peers.
You don't create one directly but can access it from a particular
Ditto instance via its
Request information about Ditto peers in the local peer-to-peer network. The V3 observer differs from
observePeersV2 by delivering strongly typed objects with documentation in addition to an easy way to get a JSON representation of the presence object graph.