sponsored Transaction
abstract suspend fun sponsoredTransaction(ptb: ProgrammableTransaction, sender: AccountAddress, expiration: TransactionExpiration = TransactionExpiration.None): Result<GasLessTransactionData, <Error class: unknown class>>
abstract suspend fun sponsoredTransaction(ptb: ProgrammableTransaction, sender: String, expiration: TransactionExpiration = TransactionExpiration.None): Result<GasLessTransactionData, <Error class: unknown class>>