addUnspendable
Add a utxo to the internal list of unspendable utxos.
It’s important to note that the "must-be-spent" utxos added with TxBuilder::add_utxo
have priority over this.
Add a utxo to the internal list of unspendable utxos.
It’s important to note that the "must-be-spent" utxos added with TxBuilder::add_utxo
have priority over this.