in src/main/java/software/amazon/qldb/Transaction.java [118:128]
Result execute(String statement, List<IonValue> parameters) {
software.amazon.awssdk.utils.Validate.paramNotBlank(statement, "statement");
Validate.notNull(parameters, "parameters");
setTransactionHash(dot(getTransactionHash(), statement, parameters, ionSystem));
final ExecuteStatementResult executeStatementResult = session.sendExecute(statement, parameters, txnId);
final StreamResult result = new StreamResult(session, executeStatementResult, txnId,
readAheadBufferCount, ionSystem, executorService);
results.add(result);
return result;
}