Implementation of the [Identify] protocol.
This implementation of the protocol periodically exchanges
[IdentifyInfo
] messages between the peers on an established connection.
At least one identification request is sent on a newly established connection, beyond which the behaviour does not keep connections alive.
The [Identify
] struct implements a NetworkBehaviour
that negotiates
and executes the protocol on every established connection, emitting
[IdentifyEvent
]s.