Imports github.com/btcsuite/btcd/chaincfg github.com/btcsuite/btcd/txscript github.com/btcsuite/btcd/wire github.com/btcsuite/btcutil Standard library imports btcsdk/walletsdk/btc_client/core/btc/internal/helpers btcsdk/walletsdk/btc_client/core/btc/internal/txrules btcsdk/walletsdk/btc_client/core/btc/internal/txsizes crypto/rand encoding/binary errors math/rand sync