@Override
    public DescribeTransactionsResult describeTransactions(Collection<String> transactionalIds, DescribeTransactionsOptions options) {
        AdminApiFuture.SimpleAdminApiFuture<CoordinatorKey, TransactionDescription> future =
            DescribeTransactionsHandler.newFuture(transactionalIds);
        DescribeTransactionsHandler handler = new DescribeTransactionsHandler(logContext);
        invokeDriver(handler, future, options.timeoutMs);
        return new DescribeTransactionsResult(future.all());
    }
Returns the broker id pertaining to the given resource, or null if the resource is not associated
with a particular broker.
clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java