 consists of several stages:</p>

    <ol>
        <li>
            <em>Sampling</em>. Before actual trace is created, message needs to be successfully sampled.
            Such mechanism allows setup tracing extension to sample only some part of messages to reduce
            overhead when used in production environment.
        </li>
        <li>
            <em>Annotating</em>. Any (created) trace can be annotated by basic and binary annotations.
            Basic annotations contain timestamp and descri