fun generateSpend(tx: TransactionBuilder, amount: Amount<Currency>, to: PublicKey, onlyFromParties: Set<Party>?): <ERROR CLASS><TransactionBuilder, List<PublicKey>>
Generate a transaction that moves an amount of currency to the given pubkey.
onlyFromParties
- if non-null, the asset states will be filtered to only include those issued by the set
of given parties. This can be useful if the party youre trying to pay has expectations
about which type of asset claims they are willing to accept.