de>statsd</code> adapter with the IP address for a statsd backend is an example of handler configuration.</p></li><li><p>Configuring a set of <em>instances</em> for Mixer to generate based on attributes and literal values. They represent a chunk of data that adapter code will operate on. For example, an operator may configure Mixer to generate <code>request_count</code> metric values from attributes such as <code>destination.service</code> and <code>response.code</code>.</p></li><li><p>Configuring a set of 