@Override
    public <R, X extends Exception> R inTransaction(Handle handle, HandleCallback<R, X> callback) throws X {
        return nonspecial(handle).inTransaction(handle, callback);
    }
This <code>TransactionHandler</code> uses local JDBC transactions
demarcated explicitly on the handle and passed through to be handled
directly on the JDBC Connection instance.
core/src/main/java/org/jdbi/v3/core/transaction/LocalTransactionHandler.java