every metric. &ldquo;global&rdquo;: &ldquo;tag&rdquo; becomes &ldquo;global:tag&rdquo; in DataDog
Default: []</p></td><td>No</td></tr><tr id=Params-sample_rate><td><code>sampleRate</code></td><td><code>double</code></td><td><p>Chance that any particular metric is sampled when emitted; can take the range [0, 1].
Default: 1</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 a specific metr