private Hash sendRawTransaction(final NodeRequests node, final String signedTransactionData) {
    try {
      final EthSendTransaction transaction =
          node.eth().ethSendRawTransaction(signedTransactionData).send();
      if (transaction.getResult() == null && transaction.getError() != null) {
        throw new RuntimeException(
            "Error sending transaction: " + transaction.getError().getMessage());
      }
      return Hash.fromHexString(transaction.getTransactionHash());
    } catch (final IOException e) {
      throw new RuntimeException(e);
    }
  }
Number of GAS units that the transaction will cost.
acceptance-tests/dsl/src/main/java/org/hyperledger/besu/tests/acceptance/dsl/transaction/account/TransferTransaction.java