Imports github.com/btcsuite/btcd/btcec/v2 github.com/btcsuite/btcd/btcutil github.com/btcsuite/btcd/chaincfg github.com/btcsuite/btcd/txscript github.com/btcsuite/btcd/wire github.com/lightningnetwork/lnd/input Standard library imports bufio bytes crypto/sha256 encoding/hex encoding/json errors io math net/http strings