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