The final hop size is calculated differently therefore we extract
the logic in its own function and also account for the case where
the final hop might be a blinded hop.
The routing package implements authentication+validation of channel
announcements, pruning of the channel graph, path finding within the network,
sending outgoing payments into the network and synchronizing new peers to our
channel graph state.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/routing
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