GRAM</code></td><td><p>Represents a histogram metric type.</p></td></tr></tbody></table></section><h2 id=Params-WavefrontDirect>Params.WavefrontDirect</h2><section><p>Describes Wavefront Server credentials.</p><table class=message-fields><thead><tr><th>Field</th><th>Type</th><th>Description</th></tr></thead><tbody><tr id=Params-WavefrontDirect-server><td><code>server</code></td><td><code>string</code></td><td><p>The Wavefront server URL. Ex: https://mydomain.wavefront.com</p></td></tr><tr id=Params-Wavefron