addUtxo

open fun addUtxo(value: UnspentTransaction): Bitcoin.SigningInput.Builder
open fun addUtxo(index: Int, value: UnspentTransaction): Bitcoin.SigningInput.Builder
open fun addUtxo(builderForValue: Builder): Bitcoin.SigningInput.Builder
open fun addUtxo(index: Int, builderForValue: Builder): Bitcoin.SigningInput.Builder
Available input unspent transaction outputs.
repeated .TW.Bitcoin.Proto.UnspentTransaction utxo = 8;