let spend_tx = nodes[0].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &Secp256k1::new()).unwrap();
check_spends!(spend_tx, remote_txn_b[0]);
let spend_tx = nodes[0].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &Secp256k1::new()).unwrap();
check_spends!(spend_tx, remote_txn_b[0]);