essage-fields><thead><tr><th>Field</th><th>Type</th><th>Description</th><th>Required</th></tr></thead><tbody><tr id=Params-MetricInfo-BucketsDefinition-Exponential-num_finite_buckets><td><code>numFiniteBuckets</code></td><td><code>int32</code></td><td><p>Must be greater than 0.</p></td><td>No</td></tr><tr id=Params-MetricInfo-BucketsDefinition-Exponential-growth_factor><td><code>growthFactor</code></td><td><code>double</code></td><td><p>Must be greater than 1.</p></td><td>No</td></tr><tr id=Params-MetricInf