Imports github.com/lightningnetwork/lnd/chainntnfs github.com/roasbeef/btcd/btcjson github.com/roasbeef/btcd/chaincfg/chainhash github.com/roasbeef/btcrpcclient github.com/roasbeef/btcutil github.com/roasbeef/btcd/wire Standard library imports container/heap errors fmt sync sync/atomic time