ance.</p></td><td>No</td></tr><tr id=Params-sampling_rate><td><code>samplingRate</code></td><td><code>float</code></td><td><p>Chance that any particular metric is sampled when incremented; can take the range [0, 1], defaults to 1 if unspecified.</p></td><td>No</td></tr><tr id=Params-metrics><td><code>metrics</code></td><td><code>map&lt;string,&nbsp;<a href=#Params-MetricInfo>MetricInfo</a>></code></td><td><p>Map of metric name -> info. If a metric&rsquo;s name is not in the map then the metric will not be e