Imports github.com/roasbeef/btcutil github.com/roasbeef/btcd/chaincfg/chainhash github.com/roasbeef/btcd/btcec google.golang.org/grpc/codes github.com/go-errors/errors github.com/roasbeef/btcd/txscript github.com/roasbeef/btcd/wire Standard library imports bytes encoding/binary errors fmt io math net