Needs
class NeedsMoreSignaturesException(message: String, assembledTransaction: AssembledTransaction<*>) : ContractException
Exception thrown when a transaction requires additional authorization signatures.
Some contract invocations require authorization from specific accounts. These accounts must sign the authorization entries using AssembledTransaction.signAuthEntries before the transaction can be submitted.
Use AssembledTransaction.needsNonInvokerSigningBy to see which accounts need to sign.